Initialize hash values:
(first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19):
h0 := 0x6a09e667
h1 := 0xbb67ae85
h2 := 0x3c6ef372
h3 := 0xa54ff53a
h4 := 0x510e527f
h5 := 0x9b05688c
h6 := 0x1f83d9ab
h7 := 0x5be0cd19
Initialize array of round constants:
(first 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311):
k[0..63] :=
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
SHA256 에서 초기 H값과 round constants(K) 값에 대한 설명입니다..
초기 H값은
(first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19):
이거를 가져온 거라고 하고
초기 K값은
(first 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311):
이거를 가져온 거라고 하는데..
해석이 안되요.. ㅠ_ㅠ
(first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19):
처음 8개 소수 2..19 의 제급근의 부분 첫 32비트??... 뭐라구요..?
포럼 잘못 찾아온건가요. 설명해 주실 분 ..
first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19
first 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311 | |
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등록안내
등록안내
아래쪽에 있는 cube root는 물론 세제곱근이고요.