Online MD2 Hash Tool
Online MD2 encoder: compute the MD2 hash digest of any text in your browser instantly. Suited for compatibility checks.
Tool input and output
About the MD2 hash
MD2 is an early message-digest algorithm that outputs a fixed 128-bit hash. It was historically used for digital signatures and integrity checks, and today it is mainly used for compatibility with older systems.
This tool computes the MD2 digest instantly in your browser. The same text always produces the same digest, which is useful when aligning results with legacy systems.
How long is an MD2 digest?
MD2 folds a message of any length into a 128-bit digest. It is an early checksum, not encryption. The definition is RFC 1319. Do not use it as a security signature.
“The algorithm takes as input a message of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input.”
Frequently Asked Questions
What is the difference between MD2 and MD5?
MD2 is an older algorithm with different implementation and byte-order rules, so its output is not compatible with MD5. Today both are only used for checks and compatibility.
Can an MD2 hash be decrypted?
No. A hash is a one-way function, so the original text cannot be recovered from the digest. Identical text always yields the same digest, which is why hashes are used for verification.
Is MD2 secure?
MD2 has known collision weaknesses and should not be used where security is required. It is fine when only aligning check values with older systems.