java.security.interfaces.DSAParams Java Examples

The following examples show how to use java.security.interfaces.DSAParams. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: DSAPrivateKey.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #2
Source File: DSAPublicKey.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #3
Source File: DSAPrivateKey.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #4
Source File: DSAPublicKey.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #5
Source File: DSAPublicKey.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #6
Source File: DSAPublicKey.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #7
Source File: BasicChecker.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #8
Source File: DSAPrivateKey.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #9
Source File: DSAPublicKey.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #10
Source File: BasicChecker.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #11
Source File: BasicChecker.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #12
Source File: BasicChecker.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #13
Source File: DSAPrivateKey.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #14
Source File: BasicChecker.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #15
Source File: DSAPublicKey.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #16
Source File: DSAPrivateKey.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #17
Source File: BasicChecker.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #18
Source File: DSAPublicKey.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #19
Source File: DSAPublicKey.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #20
Source File: BasicChecker.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #21
Source File: DSAPrivateKey.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #22
Source File: DSAPrivateKey.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #23
Source File: DSAPublicKey.java    From Bytecoder with Apache License 2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #24
Source File: BasicChecker.java    From Bytecoder with Apache License 2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #25
Source File: BasicChecker.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #26
Source File: DSAPrivateKey.java    From Bytecoder with Apache License 2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #27
Source File: DSAPublicKey.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #28
Source File: DSAPublicKey.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}
Example #29
Source File: BasicChecker.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Internal method to create a new key with inherited key parameters.
 *
 * @param keyValueKey key from which to obtain key value
 * @param keyParamsKey key from which to obtain key parameters
 * @return new public key having value and parameters
 * @throws CertPathValidatorException if keys are not appropriate types
 * for this operation
 */
static PublicKey makeInheritedParamsKey(PublicKey keyValueKey,
    PublicKey keyParamsKey) throws CertPathValidatorException
{
    if (!(keyValueKey instanceof DSAPublicKey) ||
        !(keyParamsKey instanceof DSAPublicKey))
        throw new CertPathValidatorException("Input key is not " +
                                             "appropriate type for " +
                                             "inheriting parameters");
    DSAParams params = ((DSAPublicKey)keyParamsKey).getParams();
    if (params == null)
        throw new CertPathValidatorException("Key parameters missing");
    try {
        BigInteger y = ((DSAPublicKey)keyValueKey).getY();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                   params.getP(),
                                                   params.getQ(),
                                                   params.getG());
        return kf.generatePublic(ks);
    } catch (GeneralSecurityException e) {
        throw new CertPathValidatorException("Unable to generate key with" +
                                             " inherited parameters: " +
                                             e.getMessage(), e);
    }
}
Example #30
Source File: DSAPrivateKey.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the DSA parameters associated with this key, or null if the
 * parameters could not be parsed.
 */
public DSAParams getParams() {
    try {
        if (algid instanceof DSAParams) {
            return (DSAParams)algid;
        } else {
            DSAParameterSpec paramSpec;
            AlgorithmParameters algParams = algid.getParameters();
            if (algParams == null) {
                return null;
            }
            paramSpec = algParams.getParameterSpec(DSAParameterSpec.class);
            return (DSAParams)paramSpec;
        }
    } catch (InvalidParameterSpecException e) {
        return null;
    }
}