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加密算法
Test Driver for Crypto++, a C++ Class Library of Cryptographic Primitives:
- To generate an RSA key
cryptest g
- To encrypt and decrypt a string using RSA
cryptest r
- To calculate MD5, SHS, and RIPEMD-160 message digests:
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写了一个文件加解密工具(VC9+OPENSSL)
CA程序:
生成2个RSA密钥对,分别保存为PEM格式,密码保护私钥,文件名为“RSAPrivateKey.pem”和“RSAPublicKey.pem”。
加密:
将指定明文文件加密,密文件格式自已定义,要求文件内容用对称算法(3des)加密,对称密钥(KEY)为随机生成,随机密钥用“RSAPrivateKey.pem”的公钥加密后,存放在密文文件头内(KEY1);对明文文件做摘要计算(HASH),将计算结果用“RSAP
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playfair cipher. the website for encrypt and decrypt the message
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邮件加密系统。可以实现邮件的加密发送和邮件的解密接收-E-mail encryption system. Encrypted message can decrypt messages sent and received
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Each letter is represented by a number modulo 26. (Often the simple scheme A = 0, B = 1, ..., Z = 25 is used, but this is not an essential feature of the cipher.) To encrypt a message, each block of n letters (considered as an n-component vector) is
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ES is a symmetric block cipher.
The same key is used to encrypt and decrypt the message.
The plain text and the cipher text are the same size.
The Aes algorithm works as follows:
Convert to state array: This step consists of conversion on the
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it will decrypt and encrypt all DAT files give credit and then message me in QQ for password
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This project presents a novel Multi-message Ciphertext Policy Attribute-Based Encryption (MCP-ABE) technique, and employs the MCP-ABE to design an access control scheme for sharing scalable media based on data consumers’ attributes
(e.g., age, nati
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