Java???????о?
???????????? ???????[ 2014/7/18 14:55:32 ] ????????Java ???????
?????? BASE64 ???????????????????????????
?????? MD5(Message Digest algorithm 5?????????)
?????? SHA(Secure Hash Algorithm??????????)
?????? HMAC(Hash Message Authentication Code??????????????)???????????DES??PBE???????????????
?????? DES(Data Encryption Standard???????????)
?????? PBE(Password-based encryption?????????????)
?????? RSA(??????????????????????????Ron Rivest?? AdiShamir ??Leonard Adleman)
?????? DH(Diffie-Hellman??????????Э??)
?????? DSA(Digital Signature Algorithm?????????)
?????? ECC(Elliptic Curves Cryptography?????????????????)[/size]
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?????????????????BASE64??MD5??SHA??HMAC???????????
????BASE64?????????????????????????
????MD5??SHA??HMAC???????????????ν??????????????????????????????????????????????????????????????????????????????????????????????????
????BASE64
????????RFC2045????壬Base64?????????Base64??????????????????????????е?8λ???????????????????????????????The Base64 Content-Transfer-Encoding is designed to represent arbitrary sequences of octets in a form that need not be humanly readable.??
???????????????http????????http???????????????????????????????????BASE64??????
?????????BASE64Encoder??BASE64Decoder??????????????????????????????ɡ????BASE?????????????λ????8??????????????λ????=???????
????sun?????????????????base64????????apache??????
????MD5
????MD5 -- message-digest algorithm 5 ?????-????????д?????????????????????????????У?顣У?飿??????????????MD5?????????MD5???????????ISOУ?飬????MD5У?顣????????????ISO????MD5?????MD5????????????linux-ISO?????????????????????????MD5??????????????????????μ??
??????????????????????MD5??????????MD5????????????齻??BASE64????????????????????????
????SHA
????SHA(Secure Hash Algorithm????????????????????????????????????????????????????????????????????????????SHA??MD5??????????????????????SHA??????????????????????MD5????????
??????
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