diff options
Diffstat (limited to 'libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/util/DSABase.java')
-rw-r--r-- | libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/util/DSABase.java | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/util/DSABase.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/util/DSABase.java deleted file mode 100644 index 0f659b2c4..000000000 --- a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/asymmetric/util/DSABase.java +++ /dev/null @@ -1,112 +0,0 @@ -package org.spongycastle.jcajce.provider.asymmetric.util; - -import java.math.BigInteger; -import java.security.SignatureException; -import java.security.SignatureSpi; -import java.security.spec.AlgorithmParameterSpec; - -import org.spongycastle.asn1.pkcs.PKCSObjectIdentifiers; -import org.spongycastle.asn1.x509.X509ObjectIdentifiers; -import org.spongycastle.crypto.DSA; -import org.spongycastle.crypto.Digest; - -public abstract class DSABase - extends SignatureSpi - implements PKCSObjectIdentifiers, X509ObjectIdentifiers -{ - protected Digest digest; - protected DSA signer; - protected DSAEncoder encoder; - - protected DSABase( - Digest digest, - DSA signer, - DSAEncoder encoder) - { - this.digest = digest; - this.signer = signer; - this.encoder = encoder; - } - - 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 - { - BigInteger[] sig = signer.generateSignature(hash); - - return encoder.encode(sig[0], sig[1]); - } - 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 - { - sig = encoder.decode(sigBytes); - } - 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"); - } -} |