RSA Security manual KIDSAPrivateX957BER

KI_DSAPrivateX957BER

KI_DSAPrivateX957BER

Purpose:

This KI represents the same algorithm type as KI_DSAPrivate except that it uses the ASN.1 BER format. It allows you to parse and create an ASN.1 key info type encoded as specified by X9.57. You call B_SetKeyInfo to initialize a key object from the encoded key info type that includes the private component, prime, subprime, and base. You call B_GetKeyInfo with this KI to create an encoded key info type from a key object that was created using KI_DSAPrivate, KI_DSAPrivateBER, or KI_DSAPrivateX957BER. The OID for DSA keys, excluding the tag and length bytes, in decimal, is “42, 134, 72, 206, 56, 4, 1”. Also see KI_DSAPrivate and KI_DSAPrivateBER.

Type of information this allows you to use:

the encoding of a DSA private key that is encoded as X9.57 PrivateKeyInfo type that contains an RSA Security Inc. DSAPrivateKey type. Note that this encoding contains all of the information specified by KI_DSAPrivate.

Format of info supplied to B_SetKeyInfo:

pointer to an ITEM structure that gives the address and length of the BER encoding. The encoding is converted to DER before it is copied to the key object. B_SetKeyInfo returns BE_WRONG_KEY_INFO if the PrivateKeyInfo specifies a private key for an algorithm other than DSA (as defined by X9.57).

Format of info returned by B_GetKeyInfo:

pointer to an ITEM structure that gives the address and length of the DER encoding.

Can get this info type if key object already has:

KI_DSAPrivate, KI_DSAPrivateBER, or KI_DSAPrivateX957BER.

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