Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  /*
   * Copyright 2012 Mirko Caserta
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this software except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package com.springcryptoutils.core.signature;
 
 import java.util.Map;

The default implementation for verifying the authenticity of messages using base64 encoded digital signatures when the public key is configured in an underlying mapping using a logical name.

Author(s):
Mirko Caserta (mirko.caserta@gmail.com)
 
 
 
 
 	private String algorithm = "SHA1withRSA";
 
 	private String charsetName = "UTF-8";
 
 	private String provider;

The map of public keys where the map keys are logical names which must match the publicKeyId parameter as specified in the verify method.

Parameters:
publicKeyMap the public key map
See also:
verify(java.lang.String,java.lang.String,java.lang.String)
 
 	public void setPublicKeyMap(Map<StringPublicKeypublicKeyMap) {
 		this. = publicKeyMap;
 	}

The signature algorithm. The default is SHA1withRSA.

Parameters:
algorithm the signature algorithm
 
 	public void setAlgorithm(String algorithm) {
 		this. = algorithm;
 	}

The charset to use when converting a string into a raw byte array representation. The default is UTF-8.

Parameters:
charsetName the charset name (default: UTF-8)
 
 	public void setCharsetName(String charsetName) {
 		this. = charsetName;
 	}

Sets the provider name of the specific implementation requested (e.g., "BC" for BouncyCastle, "SunJCE" for the default Sun JCE provider).

Parameters:
provider the provider to set
 
 	public void setProvider(String provider) {
 		this. = provider;
 	}

Verifies the authenticity of a message using a base64 encoded digital signature.

Parameters:
publicKeyId the logical name of the public key as configured in the underlying mapping
message the original message to verify
signature the base64 encoded digital signature
Returns:
true if the original message is verified by the digital signature
See also:
setPublicKeyMap(java.util.Map)
 
 	public boolean verify(String publicKeyIdString messageString signature) {
 		Base64EncodedVerifier verifier = .get(publicKeyId);
 
 		if (verifier != null) {
 			return verifier.verify(messagesignature);
 		}
 
		verifierImpl.setAlgorithm();
		verifierImpl.setProvider();
		PublicKey publicKey = .get(publicKeyId);
		if (publicKey == null) {
			throw new SignatureException("public key not found: publicKeyId=" + publicKeyId);
		}
		verifierImpl.setPublicKey(publicKey);
		.put(publicKeyIdverifierImpl);
		return verifierImpl.verify(messagesignature);
	}
New to GrepCode? Check out our FAQ X