Crypt::RSA::ES::PKCS1v15(3p)

NAME
Crypt::RSA::ES::PKCS1v15 - PKCS #1 v1.5 padded encryption scheme based on RSA.

SYNOPSIS
    my $pkcs = new Crypt::RSA::ES::PKCS1v15;

    my $ct = $pkcs->encrypt( Key => $key, Message => $message ) ||
                die $pkcs->errstr;

    my $pt = $pkcs->decrypt( Key => $key, Cyphertext => $ct )   ||
                die $pkcs->errstr;

DESCRIPTION
This module implements PKCS #1 v1.5 padded encryption scheme based on RSA. See [13] for details on the encryption scheme.

METHODS

  new()
Constructor.

  version()
Returns the version number of the module.

  encrypt()
Encrypts a string with a public key and returns the encrypted string on success. encrypt() takes a hash argument with the following mandatory keys:

Message
    A string to be encrypted. The length of this string should not exceed k-10 octets, where k is the octet length of the RSA modulus. If Message is longer than k-10, the method will fail and set $self->errstr to "Message too long."

Key Public key of the recipient, a Crypt::RSA::Key::Public object.

  decrypt()
Decrypts cyphertext with a private key and returns plaintext on success. $self->errstr is set to "Decryption Error." or appropriate error on failure. decrypt() takes a hash argument with the following mandatory keys:

Cyphertext
    A string encrypted with encrypt(). The length of the cyphertext must be k octets, where k is the length of the RSA modulus.

Key Private key of the receiver, a Crypt::RSA::Key::Private object.

ERROR HANDLING
See ERROR HANDLING in Crypt::RSA(3) manpage.

BIBLIOGRAPHY
See BIBLIOGRAPHY in Crypt::RSA(3) manpage.

AUTHOR
Vipul Ved Prakash, <mail@vipul.net>

SEE ALSO
Crypt::RSA(3), Crypt::RSA::Primitives(3), Crypt::RSA::Keys(3), Crypt::RSA::SSA::PSS(3)