Module: PQCrypto

Defined in:
lib/pq_crypto.rb,
lib/pq_crypto/kem.rb,
lib/pq_crypto/key.rb,
lib/pq_crypto/spki.rb,
lib/pq_crypto/pkcs8.rb,
lib/pq_crypto/errors.rb,
lib/pq_crypto/version.rb,
lib/pq_crypto/internal.rb,
lib/pq_crypto/pkcs8/der.rb,
lib/pq_crypto/signature.rb,
lib/pq_crypto/hybrid_kem.rb,
lib/pq_crypto/serialization.rb,
lib/pq_crypto/algorithm_registry.rb,
lib/pq_crypto/pkcs8/private_key_choice.rb,
ext/pqcrypto/pqcrypto_ruby_secure.c

Defined Under Namespace

Modules: AlgorithmRegistry, HybridKEM, Internal, KEM, Key, NativeBindings, PKCS8, SPKI, Serialization, Signature, Testing Classes: Error, InvalidCiphertextError, InvalidKeyError, SerializationError, UnsupportedAlgorithmError, VerificationError

Constant Summary collapse

SUITES = 
{
  kem: AlgorithmRegistry.supported_kems,
  hybrid_kem: AlgorithmRegistry.supported_hybrid_kems,
  signature: AlgorithmRegistry.supported_signatures,
}.freeze
NATIVE_EXTENSION_LOADED = 
true
VERSION = 
"0.6.7"
ML_KEM_512_PUBLIC_KEY_BYTES = 
INT2NUM(MLKEM512_PUBLICKEYBYTES)
ML_KEM_512_SECRET_KEY_BYTES = 
INT2NUM(MLKEM512_SECRETKEYBYTES)
ML_KEM_512_CIPHERTEXT_BYTES = 
INT2NUM(MLKEM512_CIPHERTEXTBYTES)
ML_KEM_512_SHARED_SECRET_BYTES = 
INT2NUM(MLKEM512_SHAREDSECRETBYTES)
ML_KEM_PUBLIC_KEY_BYTES = 
INT2NUM(PQ_MLKEM_PUBLICKEYBYTES)
ML_KEM_SECRET_KEY_BYTES = 
INT2NUM(PQ_MLKEM_SECRETKEYBYTES)
ML_KEM_CIPHERTEXT_BYTES = 
INT2NUM(PQ_MLKEM_CIPHERTEXTBYTES)
ML_KEM_SHARED_SECRET_BYTES = 
INT2NUM(PQ_MLKEM_SHAREDSECRETBYTES)
ML_KEM_1024_PUBLIC_KEY_BYTES = 
INT2NUM(MLKEM1024_PUBLICKEYBYTES)
ML_KEM_1024_SECRET_KEY_BYTES = 
INT2NUM(MLKEM1024_SECRETKEYBYTES)
ML_KEM_1024_CIPHERTEXT_BYTES = 
INT2NUM(MLKEM1024_CIPHERTEXTBYTES)
ML_KEM_1024_SHARED_SECRET_BYTES = 
INT2NUM(MLKEM1024_SHAREDSECRETBYTES)
HYBRID_KEM_PUBLIC_KEY_BYTES = 
INT2NUM(PQ_HYBRID_PUBLICKEYBYTES)
HYBRID_KEM_SECRET_KEY_BYTES = 
INT2NUM(PQ_HYBRID_SECRETKEYBYTES)
HYBRID_KEM_CIPHERTEXT_BYTES = 
INT2NUM(PQ_HYBRID_CIPHERTEXTBYTES)
HYBRID_KEM_SHARED_SECRET_BYTES = 
INT2NUM(PQ_HYBRID_SHAREDSECRETBYTES)
SIGN_44_PUBLIC_KEY_BYTES = 
INT2NUM(MLDSA44_PUBLICKEYBYTES)
SIGN_44_SECRET_KEY_BYTES = 
INT2NUM(MLDSA44_SECRETKEYBYTES)
SIGN_44_BYTES = 
INT2NUM(MLDSA44_BYTES)
SIGN_PUBLIC_KEY_BYTES = 
INT2NUM(PQ_MLDSA_PUBLICKEYBYTES)
SIGN_SECRET_KEY_BYTES = 
INT2NUM(PQ_MLDSA_SECRETKEYBYTES)
SIGN_BYTES = 
INT2NUM(PQ_MLDSA_BYTES)
SIGN_87_PUBLIC_KEY_BYTES = 
INT2NUM(MLDSA87_PUBLICKEYBYTES)
SIGN_87_SECRET_KEY_BYTES = 
INT2NUM(MLDSA87_SECRETKEYBYTES)
SIGN_87_BYTES = 
INT2NUM(MLDSA87_BYTES)

Class Method Summary collapse

Class Method Details

.__test_ml_dsa_44_keypair_from_seed(seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1227

static VALUE pqcrypto__test_ml_dsa_44_keypair_from_seed(VALUE self, VALUE seed) {
    (void)self;
    return pq_run_test_sign_keypair_from_seed(pq_testing_mldsa_44_keypair_nogvl, seed,
                                              MLDSA44_PUBLICKEYBYTES, MLDSA44_SECRETKEYBYTES);
}

.__test_ml_dsa_44_sign_from_seed(message, secret_key, seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1290

static VALUE pqcrypto__test_ml_dsa_44_sign_from_seed(VALUE self, VALUE message, VALUE secret_key,
                                                     VALUE seed) {
    (void)self;
    return pq_run_test_sign_from_seed(pq_testing_mldsa_44_sign_nogvl, message, secret_key, seed,
                                      MLDSA44_SECRETKEYBYTES, MLDSA44_BYTES);
}

.__test_ml_dsa_87_keypair_from_seed(seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1233

static VALUE pqcrypto__test_ml_dsa_87_keypair_from_seed(VALUE self, VALUE seed) {
    (void)self;
    return pq_run_test_sign_keypair_from_seed(pq_testing_mldsa_87_keypair_nogvl, seed,
                                              MLDSA87_PUBLICKEYBYTES, MLDSA87_SECRETKEYBYTES);
}

.__test_ml_dsa_87_sign_from_seed(message, secret_key, seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1297

static VALUE pqcrypto__test_ml_dsa_87_sign_from_seed(VALUE self, VALUE message, VALUE secret_key,
                                                     VALUE seed) {
    (void)self;
    return pq_run_test_sign_from_seed(pq_testing_mldsa_87_sign_nogvl, message, secret_key, seed,
                                      MLDSA87_SECRETKEYBYTES, MLDSA87_BYTES);
}

.__test_ml_kem_1024_encapsulate_from_seed(public_key, seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1117

static VALUE pqcrypto__test_ml_kem_1024_encapsulate_from_seed(VALUE self, VALUE public_key,
                                                              VALUE seed) {
    (void)self;
    return pq_run_test_kem_encapsulate_from_seed(
        pq_testing_ml_kem_1024_encapsulate_nogvl, public_key, seed, MLKEM1024_PUBLICKEYBYTES,
        MLKEM1024_CIPHERTEXTBYTES, MLKEM1024_SHAREDSECRETBYTES);
}

.__test_ml_kem_512_encapsulate_from_seed(public_key, seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1109

static VALUE pqcrypto__test_ml_kem_512_encapsulate_from_seed(VALUE self, VALUE public_key,
                                                             VALUE seed) {
    (void)self;
    return pq_run_test_kem_encapsulate_from_seed(
        pq_testing_ml_kem_512_encapsulate_nogvl, public_key, seed, MLKEM512_PUBLICKEYBYTES,
        MLKEM512_CIPHERTEXTBYTES, MLKEM512_SHAREDSECRETBYTES);
}

.__test_ml_kem_encapsulate_from_seed(public_key, seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1033

static VALUE pqcrypto__test_ml_kem_encapsulate_from_seed(VALUE self, VALUE public_key, VALUE seed) {
    (void)self;
    pq_validate_bytes_argument(public_key, PQ_MLKEM_PUBLICKEYBYTES, "public key");
    StringValue(seed);

    if ((size_t)RSTRING_LEN(seed) != 32) {
        rb_raise(rb_eArgError, "Deterministic test seed must be 32 bytes");
    }

    kem_encapsulate_call_t call = {0};
    size_t public_key_len = 0;
    size_t seed_len = 0;
    call.public_key = pq_copy_ruby_string(public_key, &public_key_len);
    call.ciphertext = pq_alloc_buffer(PQ_MLKEM_CIPHERTEXTBYTES);
    call.shared_secret = pq_alloc_buffer(PQ_MLKEM_SHAREDSECRETBYTES);
    call.seed = pq_copy_ruby_string(seed, &seed_len);
    call.seed_len = seed_len;

    rb_thread_call_without_gvl(pq_testing_ml_kem_encapsulate_nogvl, &call, NULL, NULL);
    pq_wipe_and_free((uint8_t *)call.public_key, public_key_len);
    pq_wipe_and_free((uint8_t *)call.seed, call.seed_len);

    if (call.result != PQ_SUCCESS) {
        pq_wipe_and_free(call.shared_secret, PQ_MLKEM_SHAREDSECRETBYTES);
        free(call.ciphertext);
        pq_raise_general_error(call.result);
    }

    VALUE result = rb_ary_new2(2);
    rb_ary_push(result, pq_string_from_buffer(call.ciphertext, PQ_MLKEM_CIPHERTEXTBYTES));
    rb_ary_push(result, pq_string_from_buffer(call.shared_secret, PQ_MLKEM_SHAREDSECRETBYTES));

    free(call.ciphertext);
    pq_wipe_and_free(call.shared_secret, PQ_MLKEM_SHAREDSECRETBYTES);
    return result;
}

.__test_ml_kem_keypair_from_seed(seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1000

static VALUE pqcrypto__test_ml_kem_keypair_from_seed(VALUE self, VALUE seed) {
    (void)self;
    StringValue(seed);

    if ((size_t)RSTRING_LEN(seed) != 64) {
        rb_raise(rb_eArgError, "Deterministic ML-KEM test seed must be 64 bytes (FIPS 203 d||z)");
    }

    kem_keypair_call_t call = {0};
    size_t seed_len = 0;
    call.public_key = pq_alloc_buffer(PQ_MLKEM_PUBLICKEYBYTES);
    call.secret_key = pq_alloc_buffer(PQ_MLKEM_SECRETKEYBYTES);
    call.seed = pq_copy_ruby_string(seed, &seed_len);
    call.seed_len = seed_len;

    rb_thread_call_without_gvl(pq_testing_ml_kem_keypair_nogvl, &call, NULL, NULL);
    pq_wipe_and_free((uint8_t *)call.seed, call.seed_len);

    if (call.result != PQ_SUCCESS) {
        pq_wipe_and_free(call.secret_key, PQ_MLKEM_SECRETKEYBYTES);
        free(call.public_key);
        pq_raise_general_error(call.result);
    }

    VALUE result = rb_ary_new2(2);
    rb_ary_push(result, pq_string_from_buffer(call.public_key, PQ_MLKEM_PUBLICKEYBYTES));
    rb_ary_push(result, pq_string_from_buffer(call.secret_key, PQ_MLKEM_SECRETKEYBYTES));

    free(call.public_key);
    pq_wipe_and_free(call.secret_key, PQ_MLKEM_SECRETKEYBYTES);
    return result;
}

.__test_sign_from_seed(message, secret_key, seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1158

static VALUE pqcrypto__test_sign_from_seed(VALUE self, VALUE message, VALUE secret_key,
                                           VALUE seed) {
    (void)self;
    pq_validate_bytes_argument(secret_key, PQ_MLDSA_SECRETKEYBYTES, "secret key");
    StringValue(seed);

    if ((size_t)RSTRING_LEN(seed) != 32) {
        rb_raise(rb_eArgError, "Deterministic test seed must be 32 bytes");
    }

    sign_call_t call = {0};
    size_t secret_key_len = 0;
    size_t seed_len = 0;
    call.secret_key = pq_copy_ruby_string(secret_key, &secret_key_len);
    call.signature_len = PQ_MLDSA_BYTES;
    call.signature = pq_alloc_buffer(PQ_MLDSA_BYTES);
    call.message = pq_copy_ruby_string(message, &call.message_len);
    call.seed = pq_copy_ruby_string(seed, &seed_len);
    call.seed_len = seed_len;

    rb_thread_call_without_gvl(pq_testing_sign_nogvl, &call, NULL, NULL);

    pq_free_buffer(call.message);
    pq_wipe_and_free((uint8_t *)call.secret_key, secret_key_len);
    pq_wipe_and_free((uint8_t *)call.seed, call.seed_len);

    if (call.result != PQ_SUCCESS) {
        pq_free_buffer(call.signature);
        pq_raise_general_error(call.result);
    }

    VALUE result = pq_string_from_buffer(call.signature, call.signature_len);
    pq_free_buffer(call.signature);
    return result;
}

.__test_sign_keypair_from_seed(seed) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1125

static VALUE pqcrypto__test_sign_keypair_from_seed(VALUE self, VALUE seed) {
    (void)self;
    StringValue(seed);

    if ((size_t)RSTRING_LEN(seed) != 32) {
        rb_raise(rb_eArgError, "Deterministic test seed must be 32 bytes");
    }

    sign_keypair_call_t call = {0};
    size_t seed_len = 0;
    call.public_key = pq_alloc_buffer(PQ_MLDSA_PUBLICKEYBYTES);
    call.secret_key = pq_alloc_buffer(PQ_MLDSA_SECRETKEYBYTES);
    call.seed = pq_copy_ruby_string(seed, &seed_len);
    call.seed_len = seed_len;

    rb_thread_call_without_gvl(pq_testing_sign_keypair_nogvl, &call, NULL, NULL);
    pq_wipe_and_free((uint8_t *)call.seed, call.seed_len);

    if (call.result != PQ_SUCCESS) {
        pq_wipe_and_free(call.secret_key, PQ_MLDSA_SECRETKEYBYTES);
        free(call.public_key);
        pq_raise_general_error(call.result);
    }

    VALUE result = rb_ary_new2(2);
    rb_ary_push(result, pq_string_from_buffer(call.public_key, PQ_MLDSA_PUBLICKEYBYTES));
    rb_ary_push(result, pq_string_from_buffer(call.secret_key, PQ_MLDSA_SECRETKEYBYTES));

    free(call.public_key);
    pq_wipe_and_free(call.secret_key, PQ_MLDSA_SECRETKEYBYTES);
    return result;
}

._native_mldsa_compute_tr(*args) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1566

static VALUE pqcrypto__native_mldsa_compute_tr(int argc, VALUE *argv, VALUE self) {
    (void)self;
    VALUE algorithm = ID2SYM(rb_intern("ml_dsa_65"));
    VALUE public_key;
    if (argc == 1) {
        public_key = argv[0];
    } else if (argc == 2) {
        algorithm = argv[0];
        public_key = argv[1];
    } else {
        rb_raise(rb_eArgError, "wrong number of arguments (given %d, expected 1..2)", argc);
    }

    const pq_mldsa_profile_t *profile = pq_mldsa_profile_from_value(algorithm);
    pq_validate_bytes_argument(public_key, profile->public_key_len, "public key");

    uint8_t tr[PQ_MLDSA_TRBYTES];
    int rc = pq_mldsa_compute_tr_from_public_key(tr, (const uint8_t *)RSTRING_PTR(public_key),
                                                 profile->public_key_len);
    if (rc != PQ_SUCCESS) {
        pq_raise_general_error(rc);
    }
    return pq_string_from_buffer(tr, sizeof(tr));
}

._native_mldsa_extract_tr(*args) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1538

static VALUE pqcrypto__native_mldsa_extract_tr(int argc, VALUE *argv, VALUE self) {
    (void)self;
    VALUE algorithm = ID2SYM(rb_intern("ml_dsa_65"));
    VALUE secret_key;
    if (argc == 1) {
        secret_key = argv[0];
    } else if (argc == 2) {
        algorithm = argv[0];
        secret_key = argv[1];
    } else {
        rb_raise(rb_eArgError, "wrong number of arguments (given %d, expected 1..2)", argc);
    }

    const pq_mldsa_profile_t *profile = pq_mldsa_profile_from_value(algorithm);
    pq_validate_bytes_argument(secret_key, profile->secret_key_len, "secret key");

    uint8_t tr[PQ_MLDSA_TRBYTES];
    int rc = pq_mldsa_extract_tr_from_secret_key(tr, (const uint8_t *)RSTRING_PTR(secret_key),
                                                 profile->public_key_len, profile->pk_from_sk);
    if (rc != PQ_SUCCESS) {
        pq_secure_wipe(tr, sizeof(tr));
        pq_raise_general_error(rc);
    }
    VALUE result = pq_string_from_buffer(tr, sizeof(tr));
    pq_secure_wipe(tr, sizeof(tr));
    return result;
}

._native_mldsa_mu_builder_finalize(builder_obj) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1668

static VALUE pqcrypto__native_mldsa_mu_builder_finalize(VALUE self, VALUE builder_obj) {
    (void)self;
    mu_builder_wrapper_t *wrapper = mu_builder_unwrap(builder_obj);

    uint8_t mu[PQ_MLDSA_MUBYTES];

    mu_finalize_call_t call = {0};
    call.builder = wrapper->builder;
    call.mu_out = mu;

    rb_nogvl(pq_mu_finalize_nogvl, &call, NULL, NULL, PQ_RB_NOGVL_OFFLOAD_SAFE);

    wrapper->builder = NULL;

    if (call.result != PQ_SUCCESS) {
        pq_secure_wipe(mu, sizeof(mu));
        pq_raise_general_error(call.result);
    }

    VALUE result = pq_string_from_buffer(mu, sizeof(mu));
    pq_secure_wipe(mu, sizeof(mu));
    return result;
}

._native_mldsa_mu_builder_new(tr, ctx) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1591

static VALUE pqcrypto__native_mldsa_mu_builder_new(VALUE self, VALUE tr, VALUE ctx) {
    (void)self;
    pq_validate_bytes_argument(tr, PQ_MLDSA_TRBYTES, "tr");
    StringValue(ctx);

    size_t ctxlen = (size_t)RSTRING_LEN(ctx);
    if (ctxlen > 255) {
        rb_raise(rb_eArgError, "ML-DSA context length must be <= 255 bytes");
    }

    void *builder = pq_mu_builder_new();
    if (builder == NULL) {
        rb_raise(rb_eNoMemError, "Memory allocation failed (mu builder)");
    }

    int rc = pq_mu_builder_init(builder, (const uint8_t *)RSTRING_PTR(tr),
                                (const uint8_t *)RSTRING_PTR(ctx), ctxlen);
    if (rc != PQ_SUCCESS) {
        pq_mu_builder_release(builder);
        pq_raise_general_error(rc);
    }

    mu_builder_wrapper_t *wrapper;
    VALUE obj =
        TypedData_Make_Struct(rb_cObject, mu_builder_wrapper_t, &mu_builder_data_type, wrapper);
    wrapper->builder = builder;
    return obj;
}

._native_mldsa_mu_builder_release(builder_obj) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1692

static VALUE pqcrypto__native_mldsa_mu_builder_release(VALUE self, VALUE builder_obj) {
    (void)self;
    mu_builder_wrapper_t *wrapper;
    TypedData_Get_Struct(builder_obj, mu_builder_wrapper_t, &mu_builder_data_type, wrapper);
    if (wrapper != NULL && wrapper->builder != NULL) {
        pq_mu_builder_release(wrapper->builder);
        wrapper->builder = NULL;
    }
    return Qnil;
}

._native_mldsa_mu_builder_update(builder_obj, chunk) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1626

static VALUE pqcrypto__native_mldsa_mu_builder_update(VALUE self, VALUE builder_obj, VALUE chunk) {
    (void)self;
    mu_builder_wrapper_t *wrapper = mu_builder_unwrap(builder_obj);
    StringValue(chunk);

    size_t chunk_len = (size_t)RSTRING_LEN(chunk);
    if (chunk_len == 0) {
        return Qnil;
    }

    if (chunk_len < PQ_MU_ABSORB_NOGVL_MIN_BYTES) {
        int rc =
            pq_mu_builder_absorb(wrapper->builder, (const uint8_t *)RSTRING_PTR(chunk), chunk_len);
        if (rc != PQ_SUCCESS) {
            pq_raise_general_error(rc);
        }
        return Qnil;
    }

    uint8_t *copy = pq_alloc_buffer(chunk_len);
    memcpy(copy, RSTRING_PTR(chunk), chunk_len);

    mu_absorb_call_t call = {0};
    call.builder = wrapper->builder;
    call.chunk = copy;
    call.chunk_len = chunk_len;

    rb_nogvl(pq_mu_absorb_nogvl, &call, NULL, NULL, PQ_RB_NOGVL_OFFLOAD_SAFE);
    free(copy);

    if (call.result != PQ_SUCCESS) {
        pq_raise_general_error(call.result);
    }
    return Qnil;
}

._native_mldsa_sign_mu(*args) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1710

static VALUE pqcrypto__native_mldsa_sign_mu(int argc, VALUE *argv, VALUE self) {
    (void)self;
    VALUE algorithm = ID2SYM(rb_intern("ml_dsa_65"));
    VALUE mu, secret_key;
    if (argc == 2) {
        mu = argv[0];
        secret_key = argv[1];
    } else if (argc == 3) {
        algorithm = argv[0];
        mu = argv[1];
        secret_key = argv[2];
    } else {
        rb_raise(rb_eArgError, "wrong number of arguments (given %d, expected 2..3)", argc);
    }

    const pq_mldsa_profile_t *profile = pq_mldsa_profile_from_value(algorithm);
    pq_validate_bytes_argument(mu, PQ_MLDSA_MUBYTES, "mu");
    pq_validate_bytes_argument(secret_key, profile->secret_key_len, "secret key");

    sign_mu_call_t call = {0};
    size_t secret_key_len = 0;
    size_t mu_len = 0;
    uint8_t *mu_copy = pq_copy_ruby_string(mu, &mu_len);
    uint8_t *sk_copy = pq_copy_ruby_string(secret_key, &secret_key_len);

    call.mu = mu_copy;
    call.secret_key = sk_copy;
    call.signature_extmu = profile->signature_extmu;
    call.signature_len = profile->signature_len;
    call.signature = pq_alloc_buffer(profile->signature_len);

    rb_nogvl(pq_sign_mu_nogvl, &call, NULL, NULL, PQ_RB_NOGVL_OFFLOAD_SAFE);

    pq_wipe_and_free(mu_copy, mu_len);
    pq_wipe_and_free(sk_copy, secret_key_len);

    if (call.result != PQ_SUCCESS) {
        pq_free_buffer(call.signature);
        pq_raise_general_error(call.result);
    }

    VALUE result = pq_string_from_buffer(call.signature, call.signature_len);
    pq_free_buffer(call.signature);
    return result;
}

._native_mldsa_verify_mu(*args) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1763

static VALUE pqcrypto__native_mldsa_verify_mu(int argc, VALUE *argv, VALUE self) {
    (void)self;
    VALUE algorithm = ID2SYM(rb_intern("ml_dsa_65"));
    VALUE mu, signature, public_key;
    if (argc == 3) {
        mu = argv[0];
        signature = argv[1];
        public_key = argv[2];
    } else if (argc == 4) {
        algorithm = argv[0];
        mu = argv[1];
        signature = argv[2];
        public_key = argv[3];
    } else {
        rb_raise(rb_eArgError, "wrong number of arguments (given %d, expected 3..4)", argc);
    }

    const pq_mldsa_profile_t *profile = pq_mldsa_profile_from_value(algorithm);
    StringValue(signature);
    pq_validate_bytes_argument(mu, PQ_MLDSA_MUBYTES, "mu");
    pq_validate_bytes_argument(public_key, profile->public_key_len, "public key");

    verify_mu_call_t call = {0};
    size_t public_key_len = 0;
    size_t signature_len = 0;
    size_t mu_len = 0;
    uint8_t *mu_copy = pq_copy_ruby_string(mu, &mu_len);
    uint8_t *pk_copy = pq_copy_ruby_string(public_key, &public_key_len);
    uint8_t *sig_copy = pq_copy_ruby_string(signature, &signature_len);

    call.mu = mu_copy;
    call.public_key = pk_copy;
    call.signature = sig_copy;
    call.signature_len = signature_len;
    call.expected_signature_len = profile->signature_len;
    call.verify_extmu = profile->verify_extmu;

    rb_nogvl(pq_verify_mu_nogvl, &call, NULL, NULL, PQ_RB_NOGVL_OFFLOAD_SAFE);
    pq_wipe_and_free(mu_copy, mu_len);
    pq_free_buffer(pk_copy);
    pq_free_buffer(sig_copy);

    if (call.result == PQ_SUCCESS) {
        return Qtrue;
    }
    if (call.result == PQ_ERROR_VERIFY) {
        return Qfalse;
    }
    pq_raise_general_error(call.result);
}

.backend ⇒ Object 



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# File 'lib/pq_crypto.rb', line 156

def backend
  :native_pq_code_package
end

.ct_equals ⇒ Object

.hybrid_kem_decapsulate(ciphertext, secret_key) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 950

static VALUE pqcrypto_hybrid_kem_decapsulate(VALUE self, VALUE ciphertext, VALUE secret_key) {
    (void)self;
    return pq_run_kem_decapsulate(pq_hybrid_kem_decapsulate_nogvl, ciphertext,
                                  PQ_HYBRID_CIPHERTEXTBYTES, secret_key, PQ_HYBRID_SECRETKEYBYTES,
                                  PQ_HYBRID_SHAREDSECRETBYTES);
}

.hybrid_kem_decapsulate_expanded(ciphertext, expanded_secret_key) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 957

static VALUE pqcrypto_hybrid_kem_decapsulate_expanded(VALUE self, VALUE ciphertext,
                                                      VALUE expanded_secret_key) {
    (void)self;
    return pq_run_kem_decapsulate(pq_hybrid_kem_decapsulate_expanded_nogvl, ciphertext,
                                  PQ_HYBRID_CIPHERTEXTBYTES, expanded_secret_key,
                                  PQ_HYBRID_EXPANDED_SECRETKEYBYTES, PQ_HYBRID_SHAREDSECRETBYTES);
}

.hybrid_kem_decapsulate_expanded_object(ciphertext, expanded_secret_key_obj) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 965

static VALUE pqcrypto_hybrid_kem_decapsulate_expanded_object(VALUE self, VALUE ciphertext,
                                                             VALUE expanded_secret_key_obj) {
    (void)self;
    hybrid_expanded_key_wrapper_t *wrapper = hybrid_expanded_key_unwrap(expanded_secret_key_obj);
    hybrid_decapsulate_expanded_pkey_call_t call = {0};
    VALUE result;
    size_t copied_ciphertext_len = 0;

    pq_validate_bytes_argument(ciphertext, PQ_HYBRID_CIPHERTEXTBYTES, "ciphertext");

    call.ciphertext = pq_copy_ruby_string(ciphertext, &copied_ciphertext_len);
    call.expanded_secret_key = wrapper->expanded_secret_key;
    call.shared_secret = pq_alloc_buffer(PQ_HYBRID_SHAREDSECRETBYTES);

    if (EVP_PKEY_up_ref(wrapper->x25519_private_pkey) != 1) {
        pq_wipe_and_free((uint8_t *)call.ciphertext, copied_ciphertext_len);
        pq_wipe_and_free(call.shared_secret, PQ_HYBRID_SHAREDSECRETBYTES);
        pq_raise_general_error(PQ_ERROR_OPENSSL);
    }
    call.x25519_private_pkey = wrapper->x25519_private_pkey;

    rb_thread_call_without_gvl(pq_hybrid_kem_decapsulate_expanded_pkey_nogvl, &call, NULL, NULL);
    EVP_PKEY_free((EVP_PKEY *)call.x25519_private_pkey);
    pq_wipe_and_free((uint8_t *)call.ciphertext, copied_ciphertext_len);

    if (call.result != PQ_SUCCESS) {
        pq_wipe_and_free(call.shared_secret, PQ_HYBRID_SHAREDSECRETBYTES);
        pq_raise_general_error(call.result);
    }

    result = pq_string_from_buffer(call.shared_secret, PQ_HYBRID_SHAREDSECRETBYTES);
    pq_wipe_and_free(call.shared_secret, PQ_HYBRID_SHAREDSECRETBYTES);
    return result;
}

.hybrid_kem_encapsulate(public_key) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 863

static VALUE pqcrypto_hybrid_kem_encapsulate(VALUE self, VALUE public_key) {
    (void)self;
    return pq_run_kem_encapsulate(pq_hybrid_kem_encapsulate_nogvl, public_key,
                                  PQ_HYBRID_PUBLICKEYBYTES, PQ_HYBRID_CIPHERTEXTBYTES,
                                  PQ_HYBRID_SHAREDSECRETBYTES);
}

.hybrid_kem_expand_secret_key(secret_key) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 870

static VALUE pqcrypto_hybrid_kem_expand_secret_key(VALUE self, VALUE secret_key) {
    (void)self;
    hybrid_expand_call_t call = {0};
    VALUE result;
    size_t copied_secret_key_len = 0;

    pq_validate_bytes_argument(secret_key, PQ_HYBRID_SECRETKEYBYTES, "hybrid secret key");

    call.secret_key = pq_copy_ruby_string(secret_key, &copied_secret_key_len);
    call.expanded_secret_key = pq_alloc_buffer(PQ_HYBRID_EXPANDED_SECRETKEYBYTES);

    rb_thread_call_without_gvl(pq_hybrid_kem_expand_secret_key_nogvl, &call, NULL, NULL);
    pq_wipe_and_free((uint8_t *)call.secret_key, copied_secret_key_len);

    if (call.result != PQ_SUCCESS) {
        pq_wipe_and_free(call.expanded_secret_key, PQ_HYBRID_EXPANDED_SECRETKEYBYTES);
        pq_raise_general_error(call.result);
    }

    result = pq_string_from_buffer(call.expanded_secret_key, PQ_HYBRID_EXPANDED_SECRETKEYBYTES);
    pq_wipe_and_free(call.expanded_secret_key, PQ_HYBRID_EXPANDED_SECRETKEYBYTES);
    return result;
}

.hybrid_kem_expand_secret_key_object(secret_key) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 894

static VALUE pqcrypto_hybrid_kem_expand_secret_key_object(VALUE self, VALUE secret_key) {
    (void)self;
    hybrid_expand_call_t call = {0};
    size_t copied_secret_key_len = 0;

    pq_validate_bytes_argument(secret_key, PQ_HYBRID_SECRETKEYBYTES, "hybrid secret key");

    hybrid_expanded_key_wrapper_t *wrapper;
    VALUE obj = TypedData_Make_Struct(rb_cObject, hybrid_expanded_key_wrapper_t,
                                      &hybrid_expanded_key_data_type, wrapper);
    memset(wrapper->expanded_secret_key, 0, sizeof(wrapper->expanded_secret_key));
    wrapper->x25519_private_pkey = NULL;

    call.secret_key = pq_copy_ruby_string(secret_key, &copied_secret_key_len);
    call.expanded_secret_key = wrapper->expanded_secret_key;

    rb_thread_call_without_gvl(pq_hybrid_kem_expand_secret_key_nogvl, &call, NULL, NULL);
    pq_wipe_and_free((uint8_t *)call.secret_key, copied_secret_key_len);

    if (call.result != PQ_SUCCESS) {
        pq_secure_wipe(wrapper->expanded_secret_key, sizeof(wrapper->expanded_secret_key));
        pq_raise_general_error(call.result);
    }

    const hybrid_expanded_secret_key_t *expanded =
        (const hybrid_expanded_secret_key_t *)wrapper->expanded_secret_key;
    wrapper->x25519_private_pkey = EVP_PKEY_new_raw_private_key(
        EVP_PKEY_X25519, NULL, expanded->x25519_sk, X25519_SECRETKEYBYTES);
    if (!wrapper->x25519_private_pkey) {
        pq_secure_wipe(wrapper->expanded_secret_key, sizeof(wrapper->expanded_secret_key));
        pq_raise_general_error(PQ_ERROR_OPENSSL);
    }

    return obj;
}

.hybrid_kem_expanded_secret_key_wipe(expanded_secret_key_obj) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 930

static VALUE pqcrypto_hybrid_kem_expanded_secret_key_wipe(VALUE self,
                                                          VALUE expanded_secret_key_obj) {
    (void)self;
    hybrid_expanded_key_wrapper_t *wrapper;

    TypedData_Get_Struct(expanded_secret_key_obj, hybrid_expanded_key_wrapper_t,
                         &hybrid_expanded_key_data_type, wrapper);
    if (!wrapper) {
        return Qnil;
    }

    pq_secure_wipe(wrapper->expanded_secret_key, sizeof(wrapper->expanded_secret_key));
    if (wrapper->x25519_private_pkey) {
        EVP_PKEY_free(wrapper->x25519_private_pkey);
        wrapper->x25519_private_pkey = NULL;
    }

    return Qnil;
}

.hybrid_kem_keypair ⇒ Object

.ml_dsa_44_check_secret_key ⇒ Object

.ml_dsa_44_keypair ⇒ Object

.ml_dsa_44_keypair_from_seed ⇒ Object

.ml_dsa_44_sign ⇒ Object

.ml_dsa_44_verify ⇒ Object

.ml_dsa_87_check_secret_key ⇒ Object

.ml_dsa_87_keypair ⇒ Object

.ml_dsa_87_keypair_from_seed ⇒ Object

.ml_dsa_87_sign ⇒ Object

.ml_dsa_87_verify ⇒ Object

.ml_dsa_check_secret_key ⇒ Object

.ml_dsa_keypair_from_seed ⇒ Object

.ml_kem_1024_check_public_key ⇒ Object

.ml_kem_1024_check_secret_key ⇒ Object

.ml_kem_1024_decapsulate ⇒ Object

.ml_kem_1024_encapsulate ⇒ Object

.ml_kem_1024_keypair ⇒ Object

.ml_kem_1024_keypair_from_seed ⇒ Object

.ml_kem_512_check_public_key ⇒ Object

.ml_kem_512_check_secret_key ⇒ Object

.ml_kem_512_decapsulate ⇒ Object

.ml_kem_512_encapsulate ⇒ Object

.ml_kem_512_keypair ⇒ Object

.ml_kem_512_keypair_from_seed ⇒ Object

.ml_kem_check_public_key ⇒ Object

.ml_kem_check_secret_key ⇒ Object

.ml_kem_decapsulate ⇒ Object

.ml_kem_encapsulate ⇒ Object

.ml_kem_keypair ⇒ Object

.ml_kem_keypair_from_seed ⇒ Object

.native_extension_loaded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pq_crypto.rb', line 160

def native_extension_loaded?
  true
end

.pkcs8_decrypt_der(der, passphrase) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1878

static VALUE pqcrypto_pkcs8_decrypt_der(VALUE self, VALUE der, VALUE passphrase) {
    (void)self;
    uint8_t *out = NULL;
    size_t out_len = 0;
    VALUE result;
    int ret;

    StringValue(der);
    StringValue(passphrase);
    ret = pq_pkcs8_decrypt_private_key_info_der(&out, &out_len, (const uint8_t *)RSTRING_PTR(der),
                                                (size_t)RSTRING_LEN(der), RSTRING_PTR(passphrase),
                                                (size_t)RSTRING_LEN(passphrase));
    if (ret != PQ_SUCCESS)
        pq_raise_general_error(ret);
    result = pq_string_from_buffer(out, out_len);
    pq_wipe_and_free(out, out_len);
    return result;
}

.pkcs8_der_to_pem(der, encrypted_value) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1906

static VALUE pqcrypto_pkcs8_der_to_pem(VALUE self, VALUE der, VALUE encrypted_value) {
    (void)self;
    char *pem = NULL;
    size_t pem_len = 0;
    VALUE result;
    int ret;

    StringValue(der);
    ret = pq_pkcs8_der_to_pem(&pem, &pem_len, (const uint8_t *)RSTRING_PTR(der),
                              (size_t)RSTRING_LEN(der), RTEST(encrypted_value) ? 1 : 0);
    if (ret != PQ_SUCCESS)
        pq_raise_general_error(ret);
    result = rb_str_new(pem, (long)pem_len);
    pq_secure_wipe(pem, pem_len);
    free(pem);
    return result;
}

.pkcs8_encrypt_der(der, passphrase, iterations_value) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1856

static VALUE pqcrypto_pkcs8_encrypt_der(VALUE self, VALUE der, VALUE passphrase,
                                        VALUE iterations_value) {
    (void)self;
    uint8_t *out = NULL;
    size_t out_len = 0;
    int iterations;
    VALUE result;
    int ret;

    StringValue(der);
    StringValue(passphrase);
    iterations = NUM2INT(iterations_value);
    ret = pq_pkcs8_encrypt_private_key_info_der(&out, &out_len, (const uint8_t *)RSTRING_PTR(der),
                                                (size_t)RSTRING_LEN(der), RSTRING_PTR(passphrase),
                                                (size_t)RSTRING_LEN(passphrase), iterations);
    if (ret != PQ_SUCCESS)
        pq_raise_general_error(ret);
    result = pq_string_from_buffer(out, out_len);
    pq_wipe_and_free(out, out_len);
    return result;
}

.pkcs8_encrypted_der?(der) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1897

static VALUE pqcrypto_pkcs8_encrypted_der_p(VALUE self, VALUE der) {
    (void)self;
    StringValue(der);
    return pq_pkcs8_der_is_encrypted_private_key_info((const uint8_t *)RSTRING_PTR(der),
                                                      (size_t)RSTRING_LEN(der))
               ? Qtrue
               : Qfalse;
}

.pkcs8_pem_to_der(pem) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1924

static VALUE pqcrypto_pkcs8_pem_to_der(VALUE self, VALUE pem) {
    (void)self;
    uint8_t *der = NULL;
    size_t der_len = 0;
    int encrypted = 0;
    VALUE result;
    int ret;

    StringValue(pem);
    ret =
        pq_pkcs8_pem_to_der(&der, &der_len, &encrypted, RSTRING_PTR(pem), (size_t)RSTRING_LEN(pem));
    if (ret != PQ_SUCCESS)
        pq_raise_general_error(ret);
    result = rb_ary_new_capa(2);
    rb_ary_push(result, encrypted ? Qtrue : Qfalse);
    rb_ary_push(result, pq_string_from_buffer(der, der_len));
    pq_wipe_and_free(der, der_len);
    return result;
}

.pkcs8_private_key_info_from_der(der) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1833

static VALUE pqcrypto_pkcs8_private_key_info_from_der(VALUE self, VALUE der) {
    (void)self;
    char *oid_text = NULL;
    uint8_t *private_key = NULL;
    size_t private_key_len = 0;
    VALUE result;
    int ret;

    StringValue(der);
    ret = pq_pkcs8_private_key_info_from_der(&oid_text, &private_key, &private_key_len,
                                             (const uint8_t *)RSTRING_PTR(der),
                                             (size_t)RSTRING_LEN(der));
    if (ret != PQ_SUCCESS)
        pq_raise_general_error(ret);

    result = rb_ary_new_capa(2);
    rb_ary_push(result, rb_str_new_cstr(oid_text));
    rb_ary_push(result, pq_string_from_buffer(private_key, private_key_len));
    free(oid_text);
    pq_wipe_and_free(private_key, private_key_len);
    return result;
}

.pkcs8_private_key_info_to_der(oid_text, private_key) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1814

static VALUE pqcrypto_pkcs8_private_key_info_to_der(VALUE self, VALUE oid_text, VALUE private_key) {
    (void)self;
    uint8_t *out = NULL;
    size_t out_len = 0;
    VALUE result;
    int ret;

    StringValue(oid_text);
    StringValue(private_key);
    ret = pq_pkcs8_private_key_info_to_der(&out, &out_len, RSTRING_PTR(oid_text),
                                           (const uint8_t *)RSTRING_PTR(private_key),
                                           (size_t)RSTRING_LEN(private_key));
    if (ret != PQ_SUCCESS)
        pq_raise_general_error(ret);
    result = pq_string_from_buffer(out, out_len);
    pq_wipe_and_free(out, out_len);
    return result;
}

.public_key_from_pqc_container_der(der) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1999

static VALUE pqcrypto_public_key_from_pqc_container_der(VALUE self, VALUE der) {
    (void)self;
    return pq_import_container_der(der, pq_public_key_from_pqc_container_der);
}

.public_key_from_pqc_container_pem(pem) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 2004

static VALUE pqcrypto_public_key_from_pqc_container_pem(VALUE self, VALUE pem) {
    (void)self;
    return pq_import_container_pem(pem, pq_public_key_from_pqc_container_pem);
}

.public_key_to_pqc_container_der(algorithm, key_bytes) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1975

static VALUE pqcrypto_public_key_to_pqc_container_der(VALUE self, VALUE algorithm,
                                                      VALUE key_bytes) {
    (void)self;
    return pq_export_container_der(algorithm, key_bytes, pq_public_key_to_pqc_container_der);
}

.public_key_to_pqc_container_pem(algorithm, key_bytes) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1981

static VALUE pqcrypto_public_key_to_pqc_container_pem(VALUE self, VALUE algorithm,
                                                      VALUE key_bytes) {
    (void)self;
    return pq_export_container_pem(algorithm, key_bytes, pq_public_key_to_pqc_container_pem);
}

.secret_key_from_pqc_container_der(der) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 2009

static VALUE pqcrypto_secret_key_from_pqc_container_der(VALUE self, VALUE der) {
    (void)self;
    return pq_import_container_der(der, pq_secret_key_from_pqc_container_der);
}

.secret_key_from_pqc_container_pem(pem) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 2014

static VALUE pqcrypto_secret_key_from_pqc_container_pem(VALUE self, VALUE pem) {
    (void)self;
    return pq_import_container_pem(pem, pq_secret_key_from_pqc_container_pem);
}

.secret_key_to_pqc_container_der(algorithm, key_bytes) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1987

static VALUE pqcrypto_secret_key_to_pqc_container_der(VALUE self, VALUE algorithm,
                                                      VALUE key_bytes) {
    (void)self;
    return pq_export_container_der(algorithm, key_bytes, pq_secret_key_to_pqc_container_der);
}

.secret_key_to_pqc_container_pem(algorithm, key_bytes) ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1993

static VALUE pqcrypto_secret_key_to_pqc_container_pem(VALUE self, VALUE algorithm,
                                                      VALUE key_bytes) {
    (void)self;
    return pq_export_container_pem(algorithm, key_bytes, pq_secret_key_to_pqc_container_pem);
}

.secure_wipe(str) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1448

def secure_wipe(string)
  string = String(string)
  raise ArgumentError, "secure_wipe requires a mutable String" if string.frozen?

  native_secure_wipe(string)
end

.sign ⇒ Object

.sign_keypair ⇒ Object

.supported_hybrid_kems ⇒ Object 



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# File 'lib/pq_crypto.rb', line 168

def supported_hybrid_kems
  SUITES.fetch(:hybrid_kem).dup
end

.supported_kems ⇒ Object 



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# File 'lib/pq_crypto.rb', line 164

def supported_kems
  SUITES.fetch(:kem).dup
end

.supported_signatures ⇒ Object 



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# File 'lib/pq_crypto.rb', line 172

def supported_signatures
  SUITES.fetch(:signature).dup
end

.verify ⇒ Object

.version ⇒ Object 



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# File 'ext/pqcrypto/pqcrypto_ruby_secure.c', line 1456

def version
  native_version
end