public static byte[] PRF_legacy(byte[] secret, String asciiLabel, byte[] seed, int size) { byte[] label = Strings.toByteArray(asciiLabel); byte[] labelSeed = concat(label, seed); return PRF_legacy(secret, label, labelSeed, size); }
public static byte[] PRF_legacy(byte[] secret, String asciiLabel, byte[] seed, int size) { byte[] label = Strings.toByteArray(asciiLabel); byte[] labelSeed = concat(label, seed); return PRF_legacy(secret, label, labelSeed, size); }
return TlsUtils.PRF_legacy(secret, label, seed, size); default: throw new UnsupportedOperationException("PRF computation for different"
public static byte[] PRF(TlsContext context, byte[] secret, String asciiLabel, byte[] seed, int size) { ProtocolVersion version = context.getServerVersion(); if (version.isSSL()) { throw new IllegalStateException("No PRF available for SSLv3 session"); } byte[] label = Strings.toByteArray(asciiLabel); byte[] labelSeed = concat(label, seed); int prfAlgorithm = context.getSecurityParameters().getPrfAlgorithm(); if (prfAlgorithm == PRFAlgorithm.tls_prf_legacy) { return PRF_legacy(secret, label, labelSeed, size); } Digest prfDigest = createPRFHash(prfAlgorithm); byte[] buf = new byte[size]; hmac_hash(prfDigest, secret, labelSeed, buf); return buf; }
public static byte[] PRF(TlsContext context, byte[] secret, String asciiLabel, byte[] seed, int size) { ProtocolVersion version = context.getServerVersion(); if (version.isSSL()) { throw new IllegalStateException("No PRF available for SSLv3 session"); } byte[] label = Strings.toByteArray(asciiLabel); byte[] labelSeed = concat(label, seed); int prfAlgorithm = context.getSecurityParameters().getPrfAlgorithm(); if (prfAlgorithm == PRFAlgorithm.tls_prf_legacy) { return PRF_legacy(secret, label, labelSeed, size); } Digest prfDigest = createPRFHash(prfAlgorithm); byte[] buf = new byte[size]; hmac_hash(prfDigest, secret, labelSeed, buf); return buf; }