Difference between pages "Open WebMail Header Format" and "SHA-1"
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| − | + | '''SHA-1''' ('''S'''ecure '''H'''ash '''A'''lgorithm) is a cryptographic hash function that was first published in 1995 in FIPS PUB 180-1 by the NSA as a fix to an unknown flaw found in SHA-0. | |
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| − | + | In February of 2005 an attack was announced that could find collisions in SHA-1 requiring fewer than 2<sup>69</sup> operations. | |
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| − | + | == Tools == | |
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| − | + | On most Unix systems the tool sha1 can be used to compute the SHA-1 hash of a file or devices. | |
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| − | + | == External Links == | |
| + | * [ftp://ftp.rfc-editor.org/in-notes/rfc3174.txt RFC 3174] | ||
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| + | [[Category:Hashing]] | ||
Revision as of 14:17, 5 September 2008
SHA-1 (Secure Hash Algorithm) is a cryptographic hash function that was first published in 1995 in FIPS PUB 180-1 by the NSA as a fix to an unknown flaw found in SHA-0.
In February of 2005 an attack was announced that could find collisions in SHA-1 requiring fewer than 269 operations.
Tools
On most Unix systems the tool sha1 can be used to compute the SHA-1 hash of a file or devices.
