& lt center & gt error prompt
& lt Center & gt Record the pits you stepped on, hoping to help people who have the same problem. & lt/center & gt；
Md5s ha1sha256sha512 are all abstract functions in essence, and the difference lies in their length:
MD5 is 128 bit,
SHA 1 Yes 160,
SHA256 is 256 bits,
SHA5 12 is 5 12.
SHA 1WithRSA His core algorithm is to digest it with sha 1 and then encrypt it with RSA. But he added something about the algorithm in the process of sha 1.
Functional features:
SHA 1: public key post-processing returns. SHA 1 irreversible, impact resistant.
MD5: Tamper-proof
MD5 and SHA 1 are two encryption algorithms, which are used to calculate an irreversible value to verify whether the file has been modified.
AES: faster, compatible with equipment, high security level;
DES: Local data, low security level.
RSA: Asymmetric encryption, with public key and private key.