Bouncy Castle Provider (FIPS Distribution) 1.0.2.5 · org.bouncycastle.crypto.fips.X931Signer

X9.31-1998 - signing using a hash.

The message digest hash, H, is encapsulated to form a byte string as follows

EB = 06 || PS || 0xBA || H || TRAILER

where PS is a string of bytes all of value 0xBB of length such that |EB|=|n|, and TRAILER is the ISO/IEC 10118 part number† for the digest. The byte string, EB, is converted to an integer value, the message representative, f.

Field Summary

Inherited from org.bouncycastle.crypto.internal.signers.BaseX931Signer:: TRAILER_IMPLICIT

Constructor Summary

Access	Constructor and Description
public	X931Signer(AsymmetricBlockCipher base cipher to use for signature creation/verification cipher, Digest digest to use. digest, boolean whether or not the trailer is implicit or gives the hash. implicit) Generate a signer for the with either implicit or explicit trailers for ISO9796-2.
public	X931Signer(AsymmetricBlockCipher cipher to use. cipher, Digest digest to sign with. digest) Constructor for a signer with an explicit digest trailer.

Method Summary

Inherited from org.bouncycastle.crypto.internal.signers.BaseX931Signer:: generateSignature init reset update update verifySignature

Constructor Detail

X931Signer	back to summary
public X931Signer(AsymmetricBlockCipher cipher, Digest digest, boolean implicit) Generate a signer for the with either implicit or explicit trailers for ISO9796-2. Parameters cipher:AsymmetricBlockCipher base cipher to use for signature creation/verification digest:Digest digest to use. implicit:boolean whether or not the trailer is implicit or gives the hash.

X931Signer

back to summary

public X931Signer(AsymmetricBlockCipher cipher, Digest digest, boolean implicit)

Generate a signer for the with either implicit or explicit trailers for ISO9796-2.

Parameters

cipher:AsymmetricBlockCipher: base cipher to use for signature creation/verification
digest:Digest: digest to use.
implicit:boolean: whether or not the trailer is implicit or gives the hash.

X931Signer	back to summary
public X931Signer(AsymmetricBlockCipher cipher, Digest digest) Constructor for a signer with an explicit digest trailer. Parameters cipher:AsymmetricBlockCipher cipher to use. digest:Digest digest to sign with.