Revised Secure Hash Standard
{"Image DocumentName": "Revised Secure Hash Standard", "Image ImageDescription": "NIST issued revision FIPS in adds 3 additional versions of SHA. SHA-256, SHA-384, SHA-512. designed for compatibility with increased security provided by the AES cipher. structure & detail is similar to SHA-1. hence analysis should be similar. but security levels are rather higher. In 2002, NIST produced a revised version of the standard, FIPS 180-2, that defined three new versions of SHA, with hash value lengths of 256, 384, and 512 bits, known as SHA-256, SHA-384, and SHA-512. These new versions have the same underlying structure and use the same types of modular arithmetic and logical binary operations as SHA-1, hence analyses should be similar. In 2005, NIST announced the intention to phase out approval of SHA-1 and move to a reliance on the other SHA versions by See Stallings Table12.1 for comparative details of these algorithms.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}