diff options
Diffstat (limited to 'bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ecgost/SignatureSpi.java')
| -rw-r--r-- | bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ecgost/SignatureSpi.java | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ecgost/SignatureSpi.java b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ecgost/SignatureSpi.java deleted file mode 100644 index 407dda5..0000000 --- a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ecgost/SignatureSpi.java +++ /dev/null @@ -1,211 +0,0 @@ -package org.bouncycastle.jcajce.provider.asymmetric.ecgost; - -import java.math.BigInteger; -import java.security.InvalidKeyException; -import java.security.PrivateKey; -import java.security.PublicKey; -import java.security.SignatureException; -import java.security.spec.AlgorithmParameterSpec; - -import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; -import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; -import org.bouncycastle.asn1.x509.X509ObjectIdentifiers; -import org.bouncycastle.crypto.CipherParameters; -import org.bouncycastle.crypto.DSA; -import org.bouncycastle.crypto.Digest; -import org.bouncycastle.crypto.digests.GOST3411Digest; -import org.bouncycastle.crypto.params.ParametersWithRandom; -import org.bouncycastle.crypto.signers.ECGOST3410Signer; -import org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil; -import org.bouncycastle.jce.interfaces.ECKey; -import org.bouncycastle.jce.interfaces.ECPublicKey; -import org.bouncycastle.jce.interfaces.GOST3410Key; -import org.bouncycastle.jce.provider.BouncyCastleProvider; -import org.bouncycastle.jcajce.provider.asymmetric.util.GOST3410Util; - -public class SignatureSpi - extends java.security.SignatureSpi - implements PKCSObjectIdentifiers, X509ObjectIdentifiers -{ - private Digest digest; - private DSA signer; - - public SignatureSpi() - { - this.digest = new GOST3411Digest(); - this.signer = new ECGOST3410Signer(); - } - - protected void engineInitVerify( - PublicKey publicKey) - throws InvalidKeyException - { - CipherParameters param; - - if (publicKey instanceof ECPublicKey) - { - param = ECUtil.generatePublicKeyParameter(publicKey); - } - else if (publicKey instanceof GOST3410Key) - { - param = GOST3410Util.generatePublicKeyParameter(publicKey); - } - else - { - try - { - byte[] bytes = publicKey.getEncoded(); - - publicKey = BouncyCastleProvider.getPublicKey(SubjectPublicKeyInfo.getInstance(bytes)); - - param = ECUtil.generatePublicKeyParameter(publicKey); - } - catch (Exception e) - { - throw new InvalidKeyException("can't recognise key type in DSA based signer"); - } - } - - digest.reset(); - signer.init(false, param); - } - - protected void engineInitSign( - PrivateKey privateKey) - throws InvalidKeyException - { - CipherParameters param; - - if (privateKey instanceof ECKey) - { - param = ECUtil.generatePrivateKeyParameter(privateKey); - } - else - { - param = GOST3410Util.generatePrivateKeyParameter(privateKey); - } - - digest.reset(); - - if (appRandom != null) - { - signer.init(true, new ParametersWithRandom(param, appRandom)); - } - else - { - signer.init(true, param); - } - } - - protected void engineUpdate( - byte b) - throws SignatureException - { - digest.update(b); - } - - protected void engineUpdate( - byte[] b, - int off, - int len) - throws SignatureException - { - digest.update(b, off, len); - } - - protected byte[] engineSign() - throws SignatureException - { - byte[] hash = new byte[digest.getDigestSize()]; - - digest.doFinal(hash, 0); - - try - { - byte[] sigBytes = new byte[64]; - BigInteger[] sig = signer.generateSignature(hash); - byte[] r = sig[0].toByteArray(); - byte[] s = sig[1].toByteArray(); - - if (s[0] != 0) - { - System.arraycopy(s, 0, sigBytes, 32 - s.length, s.length); - } - else - { - System.arraycopy(s, 1, sigBytes, 32 - (s.length - 1), s.length - 1); - } - - if (r[0] != 0) - { - System.arraycopy(r, 0, sigBytes, 64 - r.length, r.length); - } - else - { - System.arraycopy(r, 1, sigBytes, 64 - (r.length - 1), r.length - 1); - } - - return sigBytes; - } - catch (Exception e) - { - throw new SignatureException(e.toString()); - } - } - - protected boolean engineVerify( - byte[] sigBytes) - throws SignatureException - { - byte[] hash = new byte[digest.getDigestSize()]; - - digest.doFinal(hash, 0); - - BigInteger[] sig; - - try - { - byte[] r = new byte[32]; - byte[] s = new byte[32]; - - System.arraycopy(sigBytes, 0, s, 0, 32); - - System.arraycopy(sigBytes, 32, r, 0, 32); - - sig = new BigInteger[2]; - sig[0] = new BigInteger(1, r); - sig[1] = new BigInteger(1, s); - } - catch (Exception e) - { - throw new SignatureException("error decoding signature bytes."); - } - - return signer.verifySignature(hash, sig[0], sig[1]); - } - - protected void engineSetParameter( - AlgorithmParameterSpec params) - { - throw new UnsupportedOperationException("engineSetParameter unsupported"); - } - - /** - * @deprecated replaced with <a href = "#engineSetParameter(java.security.spec.AlgorithmParameterSpec)"> - */ - protected void engineSetParameter( - String param, - Object value) - { - throw new UnsupportedOperationException("engineSetParameter unsupported"); - } - - /** - * @deprecated - */ - protected Object engineGetParameter( - String param) - { - throw new UnsupportedOperationException("engineSetParameter unsupported"); - } -} |