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

1Crypt::RSA::ES::PKCS1v1U5s(e3r)Contributed Perl DocumentCartyipotn::RSA::ES::PKCS1v15(3)
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NAME

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

10           my $pkcs = new Crypt::RSA::ES::PKCS1v15;
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12           my $ct = $pkcs->encrypt( Key => $key, Message => $message ) ||
13                       die $pkcs->errstr;
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15           my $pt = $pkcs->decrypt( Key => $key, Cyphertext => $ct )   ||
16                       die $pkcs->errstr;
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DESCRIPTION

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

23   new()
24       Constructor.
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26   version()
27       Returns the version number of the module.
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29   encrypt()
30       Encrypts a string with a public key and returns the encrypted string on
31       success. encrypt() takes a hash argument with the following mandatory
32       keys:
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34       Message
35           A string to be encrypted. The length of this string should not
36           exceed k-10 octets, where k is the octet length of the RSA modulus.
37           If Message is longer than k-10, the method will fail and set
38           $self->errstr to "Message too long."
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40       Key Public key of the recipient, a Crypt::RSA::Key::Public object.
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42   decrypt()
43       Decrypts cyphertext with a private key and returns plaintext on
44       success. $self->errstr is set to "Decryption Error." or appropriate
45       error on failure. decrypt() takes a hash argument with the following
46       mandatory keys:
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48       Cyphertext
49           A string encrypted with encrypt(). The length of the cyphertext
50           must be k octets, where k is the length of the RSA modulus.
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52       Key Private key of the receiver, a Crypt::RSA::Key::Private object.
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ERROR HANDLING

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

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

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