Class: Linzer::RSA::Key

Inherits:
Key
  • Object
show all
Defined in:
lib/linzer/rsa.rb

Overview

RSA PKCS#1 v1.5 signing key implementation.

Uses the rsa-v1_5-sha256 algorithm identifier.

Examples:

Generating a new key

key = Linzer.generate_rsa_v1_5_sha256_key(2048, "my-rsa-key")

Loading from PEM

key = Linzer.new_rsa_v1_5_sha256_key(File.read("rsa.pem"), "key-1")

See Also:

Instance Method Summary collapse

Instance Method Details

#sign(data) ⇒ String

Signs data using RSA PKCS#1 v1.5.

Parameters:

  • data (String) —

    The data to sign

Returns:

  • (String) —

    The RSA signature

Raises:

  • (SigningError) —

    If this key does not contain private key material



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# File 'lib/linzer/rsa.rb', line 39

def sign(data)
  validate_signing_key
  material.sign(@params[:digest], data)
end

#validate ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/linzer/rsa.rb', line 29

def validate
  super
  validate_digest
end

#verify(signature, data) ⇒ Boolean

Verifies an RSA PKCS#1 v1.5 signature.

Parameters:

  • signature (String) —

    The signature bytes to verify

  • data (String) —

    The data that was signed

Returns:

  • (Boolean) —

    true if the signature is valid, false otherwise

Raises:

  • (VerifyError) —

    If this key does not contain public key material



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# File 'lib/linzer/rsa.rb', line 50

def verify(signature, data)
  validate_verify_key
  material.verify(@params[:digest], signature, data)
end