Class KJUR.crypto.DSA
class for DSA signing and verifcation
Defined in: dsa-modified-1.0.js.
| Constructor Attributes | Constructor Name and Description |
|---|---|
|
class for DSA signing and verification
CAUTION: Most of the case, you don't need to use this class. |
| Method Attributes | Method Name and Description |
|---|---|
| <static> |
KJUR.crypto.DSA.parseASN1Signature(hSigVal)
parse hexadecimal ASN.1 DSA signature value
|
| <static> |
KJUR.crypto.DSA.setPrivate(p, q, g, y, x)
set DSA private key by key specs
|
| <static> |
KJUR.crypto.DSA.setPublic(p, q, g, y)
set DSA public key by key specs
|
| <static> |
KJUR.crypto.DSA.signWithMessageHash(sHashHex)
sign to hashed message by this DSA private key object
|
| <static> |
KJUR.crypto.DSA.verifyWithMessageHash(sHashHex, hSigVal)
verify signature by this DSA public key object
|
Class Detail
KJUR.crypto.DSA()
class for DSA signing and verification
CAUTION: Most of the case, you don't need to use this class. Please use KJUR.crypto.Signature class instead.
This class was originally developped by Recurity Labs GmbH for OpenPGP JavaScript library. (See https://github.com/openpgpjs/openpgpjs/blob/master/src/ciphers/asymmetric/dsa.js)
Method Detail
<static>
{Array}
KJUR.crypto.DSA.parseASN1Signature(hSigVal)
parse hexadecimal ASN.1 DSA signature value
- Parameters:
- {String} hSigVal
- hexadecimal string of ASN.1 encoded DSA signature value
- Since:
- dsa-modified 1.0.0
- Returns:
- {Array} array [s1, s2] of DSA signature value. Both s1 and s2 are BigInteger.
<static>
KJUR.crypto.DSA.setPrivate(p, q, g, y, x)
set DSA private key by key specs
- Parameters:
- {BigInteger} p
- prime P
- {BigInteger} q
- sub prime Q
- {BigInteger} g
- base G
- {BigInteger} y
- public key Y
- {BigInteger} x
- private key X
- Since:
- dsa-modified 1.0.0
<static>
KJUR.crypto.DSA.setPublic(p, q, g, y)
set DSA public key by key specs
- Parameters:
- {BigInteger} p
- prime P
- {BigInteger} q
- sub prime Q
- {BigInteger} g
- base G
- {BigInteger} y
- public key Y
- Since:
- dsa-modified 1.0.0
<static>
{String}
KJUR.crypto.DSA.signWithMessageHash(sHashHex)
sign to hashed message by this DSA private key object
- Parameters:
- {String} sHashHex
- hexadecimal string of hashed message
- Since:
- dsa-modified 1.0.0
- Returns:
- {String} hexadecimal string of ASN.1 encoded DSA signature value
<static>
{Boolean}
KJUR.crypto.DSA.verifyWithMessageHash(sHashHex, hSigVal)
verify signature by this DSA public key object
- Parameters:
- {String} sHashHex
- hexadecimal string of hashed message
- {String} hSigVal
- hexadecimal string of ASN.1 encoded DSA signature value
- Since:
- dsa-modified 1.0.0
- Returns:
- {Boolean} true if the signature is valid otherwise false.