Exemplo n.º 1
0
        public byte[] ComputeSHA1(byte[] data, int offset, int count)
        {
            var digest = new Sha1Digest();

            digest.BlockUpdate(data, offset, count);

            var output = new byte[20];
            digest.DoFinal(output, 0);
            return output;
        }
Exemplo n.º 2
0
        public byte[] ComputeSHA1(Stream stream)
        {
            var digest = new Sha1Digest();

            var buffer = new byte[256];
            int read;
            while ((read = stream.Read(buffer, 0, 256)) > 0)
            {
                digest.BlockUpdate(buffer, 0, read);
            }

            var output = new byte[20];
            digest.DoFinal(output, 0);
            return output;
        }
        /**
         * create an AuthorityKeyIdentifier with the GeneralNames tag and
         * the serial number provided as well.
         */
        public AuthorityKeyIdentifier(
            SubjectPublicKeyInfo	spki,
            GeneralNames			name,
            BigInteger				serialNumber)
        {
            IDigest digest = new Sha1Digest();
            byte[] resBuf = new byte[digest.GetDigestSize()];

			byte[] bytes = spki.PublicKeyData.GetBytes();
            digest.BlockUpdate(bytes, 0, bytes.Length);
            digest.DoFinal(resBuf, 0);

			this.keyidentifier = new DerOctetString(resBuf);
            this.certissuer = name;
            this.certserno = new DerInteger(serialNumber);
        }
		/**
         *
         * Calulates the keyidentifier using a SHA1 hash over the BIT STRING
         * from SubjectPublicKeyInfo as defined in RFC2459.
         *
         * Example of making a AuthorityKeyIdentifier:
         * <pre>
	     *   SubjectPublicKeyInfo apki = new SubjectPublicKeyInfo((ASN1Sequence)new ASN1InputStream(
		 *       publicKey.getEncoded()).readObject());
         *   AuthorityKeyIdentifier aki = new AuthorityKeyIdentifier(apki);
         * </pre>
         *
         **/
        public AuthorityKeyIdentifier(
            SubjectPublicKeyInfo spki)
        {
            IDigest digest = new Sha1Digest();
            byte[] resBuf = new byte[digest.GetDigestSize()];

			byte[] bytes = spki.PublicKeyData.GetBytes();
            digest.BlockUpdate(bytes, 0, bytes.Length);
            digest.DoFinal(resBuf, 0);
            this.keyidentifier = new DerOctetString(resBuf);
        }
		private static byte[] GetDigest(
			SubjectPublicKeyInfo spki)
		{
            IDigest digest = new Sha1Digest();
            byte[] resBuf = new byte[digest.GetDigestSize()];

			byte[] bytes = spki.PublicKeyData.GetBytes();
            digest.BlockUpdate(bytes, 0, bytes.Length);
            digest.DoFinal(resBuf, 0);
            return resBuf;
		}