Class: XXTEA

Inherits:
Object
  • Object
show all
Defined in:
lib/xxtea/version.rb,
ext/xxtea/xxtea.c

Constant Summary collapse

VERSION = 
"1.2.0"
PKCS7_4_MIN8 = 
ID2SYM(id_pkcs7_4_min8)
PKCS7_8 = 
ID2SYM(id_pkcs7_8)
LENGTH_WORD_PREFIX = 
ID2SYM(id_length_word_prefix)
LENGTH_WORD_SUFFIX = 
ID2SYM(id_length_word_suffix)

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Object 



668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
 
# File 'ext/xxtea/xxtea.c', line 668

static VALUE
xxtea_initialize(int argc, VALUE *argv, VALUE self)
{
    VALUE key, opts;
    xxtea_cipher_t *cipher = xxtea_get(self);
    int padding;
    unsigned int rounds;

    rb_scan_args(argc, argv, "1:", &key, &opts);
    parse_opts(opts, &padding, &rounds);
    require_key(key, cipher->key);
    cipher->padding = padding;
    cipher->rounds = rounds;
    return self;
}

Class Method Details

.decrypt(*args) ⇒ Object 



620
621
622
623
624
625
626
627
628
629
630
631
632
633
 
# File 'ext/xxtea/xxtea.c', line 620

static VALUE
xxtea_s_decrypt(int argc, VALUE *argv, VALUE klass)
{
    VALUE data, key, opts;
    int padding;
    unsigned int rounds;
    char keybuf[16];

    (void)klass;
    rb_scan_args(argc, argv, "2:", &data, &key, &opts);
    parse_opts(opts, &padding, &rounds);
    require_key(key, keybuf);
    return decrypt_impl(data, keybuf, padding, rounds);
}

.decrypt_hex(*args) ⇒ Object 



641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
 
# File 'ext/xxtea/xxtea.c', line 641

static VALUE
xxtea_s_decrypt_hex(int argc, VALUE *argv, VALUE klass)
{
    VALUE data, key, opts;
    int padding;
    unsigned int rounds;
    char keybuf[16];
    VALUE raw;

    rb_scan_args(argc, argv, "2:", &data, &key, &opts);
    parse_opts(opts, &padding, &rounds);
    raw = hex_to_bytes(data);
    require_key(key, keybuf);
    return decrypt_impl(raw, keybuf, padding, rounds);
}

.encrypt(*args) ⇒ Object 



605
606
607
608
609
610
611
612
613
614
615
616
617
618
 
# File 'ext/xxtea/xxtea.c', line 605

static VALUE
xxtea_s_encrypt(int argc, VALUE *argv, VALUE klass)
{
    VALUE data, key, opts;
    int padding;
    unsigned int rounds;
    char keybuf[16];

    (void)klass;
    rb_scan_args(argc, argv, "2:", &data, &key, &opts);
    parse_opts(opts, &padding, &rounds);
    require_key(key, keybuf);
    return encrypt_impl(data, keybuf, padding, rounds);
}

.encrypt_hex(*args) ⇒ Object 



635
636
637
638
639
 
# File 'ext/xxtea/xxtea.c', line 635

static VALUE
xxtea_s_encrypt_hex(int argc, VALUE *argv, VALUE klass)
{
    return bytes_to_hex(xxtea_s_encrypt(argc, argv, klass));
}

Instance Method Details

#decrypt(data) ⇒ Object 



691
692
693
694
695
696
 
# File 'ext/xxtea/xxtea.c', line 691

static VALUE
xxtea_decrypt(VALUE self, VALUE data)
{
    xxtea_cipher_t *cipher = xxtea_get(self);
    return decrypt_impl(data, cipher->key, cipher->padding, cipher->rounds);
}

#decrypt_hex(data) ⇒ Object 



704
705
706
707
708
709
710
 
# File 'ext/xxtea/xxtea.c', line 704

static VALUE
xxtea_decrypt_hex(VALUE self, VALUE data)
{
    xxtea_cipher_t *cipher = xxtea_get(self);
    VALUE raw = hex_to_bytes(data);
    return decrypt_impl(raw, cipher->key, cipher->padding, cipher->rounds);
}

#encrypt(data) ⇒ Object 



684
685
686
687
688
689
 
# File 'ext/xxtea/xxtea.c', line 684

static VALUE
xxtea_encrypt(VALUE self, VALUE data)
{
    xxtea_cipher_t *cipher = xxtea_get(self);
    return encrypt_impl(data, cipher->key, cipher->padding, cipher->rounds);
}

#encrypt_hex(data) ⇒ Object 



698
699
700
701
702
 
# File 'ext/xxtea/xxtea.c', line 698

static VALUE
xxtea_encrypt_hex(VALUE self, VALUE data)
{
    return bytes_to_hex(xxtea_encrypt(self, data));
}

#inspect ⇒ Object 



712
713
714
715
716
717
718
719
720
721
722
723
 
# File 'ext/xxtea/xxtea.c', line 712

static VALUE
xxtea_inspect(VALUE self)
{
    xxtea_cipher_t *cipher = xxtea_get(self);
    return rb_sprintf("#<%s:%p padding=%s rounds=%u>",
                      rb_obj_classname(self), (void *)self,
                      cipher->padding == 0 ? "false" :
                      cipher->padding == 1 ? "length_word_suffix" :
                      cipher->padding == 2 ? "length_word_prefix" :
                      cipher->padding == 4 ? "pkcs7_4_min8" : "pkcs7_8",
                      cipher->rounds);
}