public bool verify(byte[] sig)
{
cs.Close();
System.Security.Cryptography.DSACryptoServiceProvider DSA = new System.Security.Cryptography.DSACryptoServiceProvider();
DSA.ImportParameters(DSAKeyInfo);
System.Security.Cryptography.DSASignatureDeformatter DSADeformatter = new System.Security.Cryptography.DSASignatureDeformatter(DSA);
DSADeformatter.SetHashAlgorithm("SHA1");
long i=0;
long j=0;
byte[] tmp;
//This makes sure sig is always 40 bytes?
if(sig[0]==0 && sig[1]==0 && sig[2]==0)
{
long i1 = (sig[i++]<<24)&0xff000000;
long i2 = (sig[i++]<<16)&0x00ff0000;
long i3 = (sig[i++]<<8)&0x0000ff00;
long i4 = (sig[i++])&0x000000ff;
j = i1 | i2 | i3 | i4;
i+=j;
i1 = (sig[i++]<<24)&0xff000000;
i2 = (sig[i++]<<16)&0x00ff0000;
i3 = (sig[i++]<<8)&0x0000ff00;
i4 = (sig[i++])&0x000000ff;
j = i1 | i2 | i3 | i4;
tmp=new byte[j];
Array.Copy(sig, i, tmp, 0, j); sig=tmp;
}
bool res = DSADeformatter.VerifySignature(sha1, sig);
return res;
}
public bool verify(byte[] sig)
{
cs.Close();
System.Security.Cryptography.DSACryptoServiceProvider DSA = new System.Security.Cryptography.DSACryptoServiceProvider();
DSA.ImportParameters(DSAKeyInfo);
System.Security.Cryptography.DSASignatureDeformatter DSADeformatter = new System.Security.Cryptography.DSASignatureDeformatter(DSA);
DSADeformatter.SetHashAlgorithm("SHA1");
long i = 0;
long j = 0;
byte[] tmp;
//This makes sure sig is always 40 bytes?
if (sig[0] == 0 && sig[1] == 0 && sig[2] == 0)
{
long i1 = (sig[i++] << 24) & 0xff000000;
long i2 = (sig[i++] << 16) & 0x00ff0000;
long i3 = (sig[i++] << 8) & 0x0000ff00;
long i4 = (sig[i++]) & 0x000000ff;
j = i1 | i2 | i3 | i4;
i += j;
i1 = (sig[i++] << 24) & 0xff000000;
i2 = (sig[i++] << 16) & 0x00ff0000;
i3 = (sig[i++] << 8) & 0x0000ff00;
i4 = (sig[i++]) & 0x000000ff;
j = i1 | i2 | i3 | i4;
tmp = new byte[j];
Array.Copy(sig, i, tmp, 0, j);
sig = tmp;
}
bool res = DSADeformatter.VerifySignature(sha1, sig);
return(res);
}
public bool verify(byte[] sig)
{
cs.Close();
System.Security.Cryptography.DSACryptoServiceProvider DSA = new System.Security.Cryptography.DSACryptoServiceProvider();
DSA.ImportParameters(DSAKeyInfo);
System.Security.Cryptography.DSASignatureDeformatter DSADeformatter = new System.Security.Cryptography.DSASignatureDeformatter(DSA);
DSADeformatter.SetHashAlgorithm("SHA1");
int i=0;
int j=0;
byte[] tmp;
if(sig[0]==0 && sig[1]==0 && sig[2]==0)
{
j=(int)((sig[i++]<<24)&0xff000000)|(byte)((sig[i++]<<16)&0x00ff0000)|(byte)
((sig[i++]<<8)&0x0000ff00)|(byte)((sig[i++])&0x000000ff);
i+=j;
j=(int)((sig[i++]<<24)&0xff000000)|(byte)((sig[i++]<<16)&0x00ff0000)|(byte)
((sig[i++]<<8)&0x0000ff00)|(byte)((sig[i++])&0x000000ff);
tmp=new byte[j];
Array.Copy(sig, i, tmp, 0, j); sig=tmp;
}
// // ASN.1
// int frst=((sig[0]&0x80)!=0?1:0);
// int scnd=((sig[20]&0x80)!=0?1:0);
// //System.out.println("frst: "+frst+", scnd: "+scnd);
//
// int length=sig.Length+6+frst+scnd;
// tmp=new byte[length];
// tmp[0]=(byte)0x30; tmp[1]=(byte)0x2c;
// tmp[1]+=(byte)frst; tmp[1]+=(byte)scnd;
// tmp[2]=(byte)0x02; tmp[3]=(byte)0x14;
// tmp[3]+=(byte)frst;
// Array.Copy(sig, 0, tmp, 4+frst, 20);
// tmp[4+tmp[3]]=(byte)0x02; tmp[5+tmp[3]]=(byte)0x14;
// tmp[5+tmp[3]]+=(byte)scnd;
// Array.Copy(sig, 20, tmp, 6+tmp[3]+scnd, 20);
// sig=tmp;
/*
tmp=new byte[sig.length+6];
tmp[0]=(byte)0x30; tmp[1]=(byte)0x2c;
tmp[2]=(byte)0x02; tmp[3]=(byte)0x14;
System.arraycopy(sig, 0, tmp, 4, 20);
tmp[24]=(byte)0x02; tmp[25]=(byte)0x14;
System.arraycopy(sig, 20, tmp, 26, 20); sig=tmp;
*/
//return signature.verify(sig);
//Console.WriteLine("Sig Length = "+sig.Length);
//bool res = DSADeformatter.VerifySignature(sha1, Util.FixDsaSig2(sig));
bool res = DSADeformatter.VerifySignature(sha1, sig);
return res;
}