Cryptographic Token Interface Standard

PKCS#11


Towfish -CBC with PKCS padding

Towfish-CBC-PAD, denoted CKM_TOWFISH_CBC_PAD, is a mechanism for single- and multiple-part encryption and decryption, key wrapping and key unwrapping, cipher-block chaining mode and the block cipher padding method detailed in PKCS #7.

It has a parameter, a 16-byte initialization vector.

The PKCS padding in this mechanism allows the length of the plaintext value to be recovered from the ciphertext value. Therefore, when unwrapping keys with this mechanism, no value should be specified for the CKA_VALUE_LEN attribute.


RSA Security Inc. Public-Key Cryptography Standards - PKCS#11 - v230mechanism1