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Calculates SHA-1 hash.
Unit
EHash
Syntax
Parameters
AData [in]
A data to calculate hash.
ADataSize [in]
Size of AData in bytes.
Return value
SHA-1 hash of the specified AData.
Remarks
SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function. SHA-1 produces a 160-bit (20-byte) hash value known as a message digest. A SHA-1 hash value is typically rendered as a hexadecimal number, 40 digits long.
SHA-1 forms part of several widely used security applications and protocols, including TLS and SSL, PGP, SSH, S/MIME, and IPsec. SHA-1 hashing is also used in distributed revision control systems like Git, Mercurial, and Monotone to identify revisions, and to detect data corruption or tampering.
Important!
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SHA-1 is considered insecure against well-funded opponents. It is recommended to use SHA-2 or SHA-3 instead. Microsoft, Google and Mozilla have all announced that their respective browsers will stop accepting SHA-1 SSL certificates by 2017. Windows XP SP2 and earlier, and Android 2.2 and earlier, do not support SHA2 certificates.
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See also
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Build date: 2024-09-30
Last edited: 2024-09-30
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