elliptic curve digital signature algorithm

1.Encryption Algorithm Daquan:Rsa:RSA is made of the initial letters of the surnames of Ron Rivest, Adi Shamir, and Leonard Adleman, who first publicly desc Ribed the algorithm in 1977.Http://www.emc.com/corporate/about-rsa/index.htmHttps://en.wikipedia.org/wiki/RSA_%28cryptosystem%29DSA: Digitally Signature algorithm

I. Overview 1, the digital Signature algorithm can be regarded as a message digest algorithm with a key, and this key includes the public and private keys. He's a combination of asymmetric encryption algorithms and message digest algorithms. 2, the digital

(decrypt)); } } The DSA algorithm and digital signature DSA are typically used for digital signatures and authentication. The DSA is a variant of the Schnorr and ElGamal signature algorithm, which was used as a DSS (Di

The following is an example of digital signature using the DSA Signature Algorithm in Java. Digital signature algorithm (DSA) is a variant of Schnorr and Elgamal

Pkcs8encodedkeyspec (rsaprivatekey.getencoded ());Keyfactory keyfactory = keyfactory.getinstance ("RSA");Privatekey Privatekey = keyfactory.generateprivate (Pkcs8encodedkeyspec);Signature Signature = signature.getinstance ("Md5withrsa");Signature.initsign (Privatekey);Signature.update (Src.getbytes ());Byte[] result = Signature.sign ();System.out.println ("JDK RSA sign:" + hexbin.encode (result));3. Verify

Java digital signature algorithm-RSA Signature features: Security Anti-denial Digital Signature: a message digest algorithm with a key (Public Key and private key). The

Original address: an example of Java digital signature based on RSA algorithmFirst, preface:Network data security includes the security of the data itself, the integrity of the data (to prevent tampering), the non-repudiation of the data source, and other elements. Encryption algorithm for data encryption can ensure the security of the data itself, the use of Mes

RSA algorithm is the first algorithm that can be used both for data encryption and digital signature. It is easy to understand and operate, but also very popular. Its security is based on the difficulty of large integer factor factorization, and the large integer factorization problem is a famous problem in mathematics

Digital signatures are common: Before learning about digital signatures, you must first understand the SHA-1 digest and RSA encryption algorithm. Then, learn more about digital signatures.SHA-1 SHA-1 (secure hash algorithm) is Data encryption algorithm.The idea of this

Reprint Address: http://www.cnblogs.com/songwenlong/p/6517165.html Table of Contents 0. Overview 1. Security of data transmission 2. Guaranteed Integrity 3. Guarantee the authenticity of the data 4. Public key Certificate 5. Algorithm detailed index Body This article explains symmetric encryption, asymmetric encryption, message digest, MAC, digital signature,

Digital Signature Algorithm Java version or on the code bar public static final String sign_algorithms = "Sha1withrsa"; /** * RSA Signature * @param content pending Signature data * @param privatekey private key * @param input_charset encoded format * @return

; } /*** Digital signature production with private key, *@paramData *@paramPrivatekey *@return * @throwsException*/ Public Static byte[] Sign (byte[] Data,byte[] privatekey)throwsException {pkcs8encodedkeyspec PKC=NewPkcs8encodedkeyspec (Privatekey); Keyfactory keyfactory=keyfactory.getinstance (Key_algorithm); Privatekey Prikey=keyfactory.generateprivate (PKC);

keyfactory = keyfactory.getinstance ("DSA");Privatekey Privatekey = keyfactory.generateprivate (Pkcs8encodedkeyspec);Signature Signature = signature.getinstance ("Sha1withdsa");Signature.initsign (Privatekey);Signature.update (Src.getbytes ());Byte[] result = Signature.sign ();System.out.println ("JDK DSA sign:" + hexbin.encode (result));3. Verifying the signatureX509encodedkeyspec X509encodedkeyspec = new

(ecprivatekey.getencoded ());Keyfactory keyfactory = keyfactory.getinstance ("EC");Privatekey Privatekey =keyfactory.generateprivate (PKCS8ENCODEDKEYSPEC);Signature Signature = signature.getinstance ("Sha1withecdsa");Signature.initsign (Privatekey);Signature.update (Src.getbytes ());Byte[] result = Signature.sign ();System.out.println ("JDK ECDSA sign:" +hexbin.encode (result));X509encodedkeyspec X509encod