B.2.1. DES-CBC-Pad

DES-CBC-Pad is single-key DES [NIST46] in CBC mode [NIST81] with the padding operation specified in RFC 1423 [RFC1423] (see Section 6.1.1 of this document). DES-CBC-Pad has an eight-octet encryption key and an eight-octet initialization vector. The key is considered as a 64-bit encoding of a 56-bit DES key with parity bits ignored.

The object identifier desCBC (defined in the NIST/OSI Implementors' Workshop agreements) identifies the DES-CBC-Pad encryption scheme:

desCBC OBJECT IDENTIFIER ::=
   {iso(1) identified-organization(3) oiw(14) secsig(3)
    algorithms(2) 7}

The parameters field associated with this OID in an AlgorithmIdentifier shall have type OCTET STRING (SIZE(8)), specifying the initialization vector for CBC mode.

B.2.1. DES-CBC-Pad​

B.2.1. DES-CBC-Pad