HASH Online encoder/decoder
What is HASH Online encoder/decoder?
HASH Online encoder/decoder offer tools for:
- MD5 encryption
- SHA-1 encryption
- SHA-2 encryption
- SHA-256 encryption
- SHA-512 encryption
- SHA-3 encryption
- RIPEMD-160 encryption
MD5 hash algorithm
MD5 stands for Message-Digest Algorithm 5, which is used to ensure the integrity and consistency of information transmission. It is one of the hash algorithms widely used by computers (also translated as digest algorithm, hash algorithm), and MD5 is generally implemented in mainstream programming languages. The basic principle of hash algorithms is to calculate data into another fixed-length value. The predecessors of MD5 are MD2, MD3 and MD4.MD5 was once widely used in the security field. However, due to the continuous discovery of MD5's weaknesses and the continuous improvement of computer capabilities, it is now possible to construct two messages with the same MD5, making this algorithm no longer suitable for the current security environment. At present, MD5 calculations are widely used in error checking. For example, in some BitTorrent downloads, the software calculates MD5 and verifies the integrity of the downloaded fragments.
MD5 is an algorithm that inputs information of indefinite length and outputs a fixed length of 128-bits. After the program flow, four 32-bit data are generated, and finally combined into a 128-bit hash. The basic method is to find the remainder, take the remainder, adjust the length, and perform a cyclic operation with the link variable. The result is obtained.
SHA-1 hash algorithm
SHA-1 is widely used in many security protocols, including TLS and SSL, PGP, SSH, S/MIME and IPsec, and was once regarded as the successor to MD5 (an earlier widely used hash function).However, the security of SHA-1 is now seriously questioned by cryptographers.
SHA-2 hash algorithm
SHA-224, SHA-256, SHA-384, and SHA-512 are collectively called SHA-2.The new hash functions have not been subjected to the same detailed examination by the public cryptographic community as SHA-1, so their cryptographic security is not widely trusted.
Although there has been no effective attack on SHA-2, its algorithm is still basically similar to SHA-1; therefore, some people have begun to develop other alternative hash algorithms.
SHA-3 hash algorithm
SHA-3, formerly known as the Keccak algorithm, is a cryptographic hash algorithm.SHA-3 is not intended to replace SHA-2, because SHA-2 currently has no obvious weaknesses.
Due to the successful cracking of MD5, and the theoretical cracking of SHA-0 and SHA-1, NIST felt the need for a different, alternative cryptographic hash algorithm, which is now SHA-3.
RIPEMD-160 Hash Algorithm
RIPEMD-160 is a 160-bit cryptographic hash function.It is intended to be a replacement for the 128-bit hash functions MD4, MD5, and RIPEMD.
RIPEMD was developed in the framework of the EU project RIPE (RACE Integrity Primitives Evaluation, 1988-1992).