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Showing posts from April, 2012

NIST Security Strength Time Frames

Security Strength Time Frames of NISTSP 800-57 Part 1Security Strength80112128192256applyingprocessingapplyingprocessingthrough 2010acceptableacceptable acceptable acceptable acceptable acceptable acceptable2011 through2013deprecated legacy use acceptable acceptable acceptable acceptable acceptable 2014 through 2030 disallowed legacy use acceptable acceptable acceptable acceptable acceptable 2031 and Beyonddisallowed legacy use disallowed legacy use acceptable acceptable acceptable Symmetric Algorithms2TDEA3TDEAAES-128 AES-192 AES-256 FFC (e.g., DSA, D-H) L = 1024
N = 160 L = 2048
N = 224 L = 3072
N = 256 L = 7680
N = 384 L = 15360
N = 512 IFC (e.g., RSA)k = 1024 k = 2048 k = 3072 k = 7680 k = 15360 ECC (e.g.,ECDSA) f = 160-223 f = 224-255 f = 256-383 f = 384-511 f = 512+ Digital Signatures and hash-only applications SHA-1,
SHA-224,
SHA-256,
SHA-384,
SHA-512 SHA-224,
SHA-256,
SHA-384,
SHA-512 SHA-256, SHA-384, SHA-512 SHA-384, SHA-512 SHA-512 HMACSHA-1,
SHA-224,
SHA-256,