封装了两个加密小工具（des, rsa加密）

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1. DES 加密

require "openssl"

class EncryptDes

def initialize(_key = "", _iv = "")

@encrypt = OpenSSL::Cipher::Cipher.new("DES-CBC")

_key.size < 8 ? @encrypt.random_key : (@encrypt.key = _key)

_iv.size < 8 ? @encrypt.random_iv : (@encrypt.iv = _iv)

end

# DES 加密

def encrypt(text)

@encrypt.encrypt

ret = @encrypt.update(text)

ret << @encrypt.final

end

# DES 解密

def decrypt(encrypt_value)

@encrypt.decrypt

ret = @encrypt.update(encrypt_value)

ret << @encrypt.final

end

2. RSA 加密

require "openssl"

class EncryptRsa

def initialize(num = 1024)

num = 1024 if num < 32

rsa = OpenSSL::PKey::RSA.new(num)

@public_key = rsa.public_key.to_pem

@private_key = rsa.to_pem

end

# 私密加密

def private_encrypt(value)

rsa_private_encrypt(value, @private_key)

end

# 私密解密

def private_decrypt(value)

rsa_public_decrypt(value, @public_key)

end

# 公密加密

def public_encrypt(value)

rsa_public_encrypt(value, @public_key)

end

# 公密解密

def public_decrypt(value)

rsa_private_decrypt(value, @private_key)

end

private

def rsa_private_encrypt(value, rsakey)

rsa = OpenSSL::PKey::RSA.new(rsakey)

rsa.private_encrypt(value)

end

def rsa_private_decrypt(value, rsakey)

rsa = OpenSSL::PKey::RSA.new(rsakey)

rsa.private_decrypt(value)

end

def rsa_public_encrypt(value, publickey)

rsa = OpenSSL::PKey::RSA.new(publickey)

rsa.public_encrypt(value)

end

def rsa_public_decrypt(value, publickey)

rsa = OpenSSL::PKey::RSA.new(publickey)

rsa.public_decrypt(value)

end

3. DES-EDE3加密

require "openssl"
require "base64"
class EncryptDes
def initialize()
@encrypt = OpenSSL::Cipher::Cipher.new("DES-EDE3")
end

# DES 加密
def encrypt(key, text)
    @encrypt.key = key
    @encrypt.encrypt
    s = @encrypt.update text
    s << @encrypt.final
    Base64.encode64(s)
end

# DES 解密
def decrypt(key, encrypt_value)
    _value = Base64.decode64(encrypt_value)
    @encrypt.key = key
    @encrypt.decrypt
    ret = @encrypt.update(_value)
    ret << @encrypt.final
end
end

使用如下：

des = EncryptDes.new

des.encrypt(key, uncrypt_str)

des.decrypt(key, encrypt_value)

来源：oschina

链接：https://my.oschina.net/u/15340/blog/5710

标签

OpenSSL

des

rsa