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Class cryptix.provider.rsa.RawRSAPrivateKey
java.lang.Object
|
+----cryptix.provider.rsa.BaseRSAPrivateKey
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+----cryptix.provider.rsa.RawRSAPrivateKey
- public class RawRSAPrivateKey
- extends BaseRSAPrivateKey
A class representing a RAW-encoded RSA private key.
The encoding consists of the following, in order:
- the private exponent d,
- the first factor of the modulus, p,
- the second factor of the modulus, q,
- the coefficient q^-1 mod p.
Each integer is represented as follows:
Byte Length
offset (bytes) Meaning
0 2 The length in bits of this BigInteger (MSB first);
2 variable The BigInteger's magnitude with no leading zeroes,
again MSB first.
Copyright © 1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.4 $
- Author:
- Raif S. Naffah, David Hopwood
-
RawRSAPrivateKey(BigInteger, BigInteger, BigInteger)
- Constructs a raw RSA private key given the private exponent, and
the two factors used to generate the public modulus n.
-
RawRSAPrivateKey(BigInteger, BigInteger, BigInteger, BigInteger)
- Constructs a raw RSA private key given the private exponent, and
the two factors used to generate the public modulus n.
-
RawRSAPrivateKey(InputStream)
- Constructs a raw RSA private key from data read from an InputStream,
encoded as described above.
-
getEncoded()
- Returns an encoding of the key as a byte array, as described
above.
-
getFormat()
- Returns the encoding format name, for this class always "RAW".
RawRSAPrivateKey
public RawRSAPrivateKey(BigInteger d,
BigInteger p,
BigInteger q)
- Constructs a raw RSA private key given the private exponent, and
the two factors used to generate the public modulus n.
The factors may be in any order.
- Parameters:
- d - the private exponent
- p - the first factor of the public modulus
- q - the second factor of the public modulus
RawRSAPrivateKey
public RawRSAPrivateKey(BigInteger d,
BigInteger p,
BigInteger q,
BigInteger u)
- Constructs a raw RSA private key given the private exponent, and
the two factors used to generate the public modulus n.
The factors must be given in the correct order, such
that u = q^-1 mod p.
- Parameters:
- d - the private exponent
- p - the first factor of the public modulus
- q - the second factor of the public modulus
- u - the multiplicative inverse of q modulo p
RawRSAPrivateKey
public RawRSAPrivateKey(InputStream is) throws IOException
- Constructs a raw RSA private key from data read from an InputStream,
encoded as described above.
- Parameters:
- is - the input stream from which data is parsed.
- Throws: IOException
- if any I/O error occurs.
- See Also:
- getEncoded
getFormat
public String getFormat()
- Returns the encoding format name, for this class always "RAW".
- Returns:
- the encoding format name for this key, "RAW".
- Overrides:
- getFormat in class BaseRSAPrivateKey
getEncoded
public byte[] getEncoded()
- Returns an encoding of the key as a byte array, as described
above.
- Returns:
- the encoded byte array, or null if an error occurred.
- Overrides:
- getEncoded in class BaseRSAPrivateKey
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