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@fururun02

ハッシュ関数・進数変換備忘録

Last updated at Posted at 2020-03-22

ハッシュ関数・進数変換備忘録

一方向性ハッシュ関数

SHA256

特定の文字列をSHA256アルゴリズムでハッシュ化する

# echo -n ABCDEFGHIJKLMN | sha256sum
93c5f007220b38ab257456a0e96540d148d4425cf91569dbcdfe6b72685538a4  -

HMAC-SHA256

特定の文字列をSHA256アルゴリズム(HMAC付き)でハッシュ化する

#  echo -n "ABCDEFGHIJKLMN" | openssl dgst -sha256 -hmac "secret_key"
(stdin)= 3398f37e84ec13d8f62e33c8d0e708af2a12847fae9ba1a45b027c1654156537

SHA1

特定の文字列をSHA1アルゴリズムでハッシュ化する

# echo -n ABCDEFGHIJKLMN | sha1sum
6238bf61dd8df8f77156b2378e9e39cd3939680c  -

MD5

特定の文字列をSHA1アルゴリズムでハッシュ化する

# echo -n ABCDEFGHIJKLMN | md5sum
47e441c9bbd571f97fc86c5be32f6cc0  -

進数変換

16進数化

特定の文字列を16進数化する

# echo -n ABCDEFGHIJKLMN | xxd -p
4142434445464748494a4b4c4d4e
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