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Hashing is a one-way mathematical function: it is impossible to retrieve the original text from the fingerprint. Two different texts produce completely different hashes, even with a single character difference.
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Max 64 Mo
Hashing is a one-way mathematical function: it is impossible to retrieve the original text from the fingerprint. Two different texts produce completely different hashes, even with a single character difference.
Available algorithms
SHA-256
64 hex
Good
Current standard, signatures, certificates
SHA-1
40 hex
Deprecated
Legacy compatibility only
SHA-512
128 hex
Very good
Sensitive applications, long-term
MD5
32 hex
Weak (collisions)
Non-critical file verification
SHA-1 has known collision vulnerabilities. Do not use it anymore for security. SHA-256 is the minimum recommended today for any cryptographic application.