java.security.interfaces.DSAParams Java Examples
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java.security.interfaces.DSAParams.
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Example #1
Source File: DSAPrivateKey.java From hottub with GNU General Public License v2.0 | 6 votes |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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 |
/** * 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; } }