package org.utils.signature;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.Signature;
import java.security.SignatureException;
public class Signing {
public static byte[] sign(SignatureContainer signature, String value)
throws NoSuchAlgorithmException, SignatureException,
InvalidKeyException {
Signature sign = Signature.getInstance(signature.getIdHash() + "with"
+ signature.getIdAlg());
sign.initSign(signature.getKey());
sign.update(value.getBytes(), 0, value.getBytes().length);
return sign.sign();
}
}
/*
* Message Digest Algorithms
*
* The algorithm names in this section can be specified when generating an
* instance of MessageDigest.
*
* MD2: The MD2 message digest algorithm as defined in RFC 1319.
*
* MD5: The MD5 message digest algorithm as defined in RFC 1321.
*
* SHA-1: The Secure Hash Algorithm, as defined in Secure Hash Standard, NIST
* FIPS 180-1.
*
* SHA-256, SHA-384, and SHA-512: New hash algorithms for which the draft
* Federal Information Processing Standard 180-2, Secure Hash Standard (SHS) is
* now available. SHA-256 is a 256-bit hash function intended to provide 128
* bits of security against collision attacks, while SHA-512 is a 512-bit hash
* function intended to provide 256 bits of security. A 384-bit hash may be
* obtained by truncating the SHA-512 output.
*/
/*
* Digital Signature Algorithms
*
* The algorithm names in this section can be specified when generating an
* instance of Signature.
*
* ECDSA (Elliptic Curve Digital Signature Algorithm), an authentication
* mechanism described in ECC Cipher Suites for TLS (January 2004 draft).
*
* MD2withRSA: The MD2 with RSA Encryption signature algorithm which uses the
* MD2 digest algorithm and RSA to create and verify RSA digital signatures as
* defined in PKCS #1.
*
* MD5withRSA: The MD5 with RSA Encryption signature algorithm which uses the
* MD5 digest algorithm and RSA to create and verify RSA digital signatures as
* defined in PKCS #1.
*
* NONEwithDSA: This signature algorithm accepts direct raw data to be signed
* and uses DSA to create and verify DSA digital signatures as defined in FIPS
* PUB 186. The data must be exactly 20 bytes in length. This algorithms is also
* known under the alias name of RawDSA.
*
* SHA1withDSA: The DSA with SHA-1 signature algorithm which uses the SHA-1
* digest algorithm and DSA to create and verify DSA digital signatures as
* defined in FIPS PUB 186.
*
* SHA1withRSA: The signature algorithm with SHA-1 and the RSA encryption
* algorithm as defined in the OSI Interoperability Workshop, using the padding
* conventions described in PKCS #1.
*
* <digest>with<encryption>: Use this to form a name for a signature algorithm
* with a particular message digest (such as MD2 or MD5) and algorithm (such as
* RSA or DSA), just as was done for the explicitly-defined standard names in
* this section (MD2withRSA, etc.). For the new signature schemes defined in
* PKCS #1 v 2.0, for which the <digest>with<encryption> form is insufficient,
* <digest>with<encryption>and<mgf> can be used to form a name. Here, <mgf>
* should be replaced by a mask generation function such as MGF1. Example:
* MD5withRSAandMGF1.
*/