SHA-256: Difference between revisions
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Either by using a dedicated library or implementing the algorithm in your language, show that the SHA-256 digest of the string "Rosetta code" is: 764faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf |
Either by using a dedicated library or implementing the algorithm in your language, show that the SHA-256 digest of the string "Rosetta code" is: 764faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf |
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=={{header|AutoHotkey}}== |
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<lang AutoHotkey>rosetta := "Rosetta code" |
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MsgBox % "String:`t" rosetta "`nSHA-256:`t" SHA256(rosetta) |
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; MD4 =============================================================================== |
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SHA256(string, encoding = "utf-8") |
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{ |
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return CalcStringHash(string, 0x800c, encoding) |
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} |
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; CalcAddrHash ====================================================================== |
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CalcAddrHash(addr, length, algid, byref hash = 0, byref hashlength = 0) |
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{ |
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static h := [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, "A", "B", "C", "D", "E", "F"] |
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static b := h.minIndex() |
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o := "" |
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if (DllCall("advapi32\CryptAcquireContext", "Ptr*", hProv, "Ptr", 0, "Ptr", 0, "Uint", 24, "Uint", 0xF0000000)) |
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{ |
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if (DllCall("advapi32\CryptCreateHash", "Ptr", hProv, "Uint", algid, "Uint", 0, "Uint", 0, "Ptr*", hHash)) |
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{ |
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if (DllCall("advapi32\CryptHashData", "Ptr", hHash, "Ptr", addr, "Uint", length, "Uint", 0)) |
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{ |
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if (DllCall("advapi32\CryptGetHashParam", "Ptr", hHash, "Uint", 2, "Ptr", 0, "Uint*", hashlength, "uint", 0)) |
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{ |
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VarSetCapacity(hash, hashlength, 0) |
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if (DllCall("advapi32\CryptGetHashParam", "Ptr", hHash, "Uint", 2, "Ptr", &hash, "Uint*", hashlength, "Uint", 0)) |
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{ |
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Loop, % hashlength |
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{ |
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v := NumGet(hash, A_Index - 1, "uchar") |
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o .= h[(v >> 4) + b] h[(v & 0xf) + b] |
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} |
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} |
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} |
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} |
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DllCall("advapi32\CryptDestroyHash", "Ptr", hHash) |
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} |
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DllCall("advapi32\CryptReleaseContext", "Ptr", hProv, "Uint", 0) |
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} |
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return o |
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} |
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; CalcStringHash ==================================================================== |
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CalcStringHash(string, algid, encoding = "utf-8", byref hash = 0, byref hashlength = 0) |
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{ |
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chrlength := (encoding = "cp1200" || encoding = "utf-16") ? 2 : 1 |
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length := (StrPut(string, encoding) - 1) * chrlength |
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VarSetCapacity(data, length, 0) |
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StrPut(string, &data, floor(length / chrlength), encoding) |
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return CalcAddrHash(&data, length, algid, hash, hashlength) |
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}</lang> |
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{{out}} |
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<pre>String: Rosetta Code |
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SHA-256: 764FAF5C61AC315F1497F9DFA542713965B785E5CC2F707D6468D7D1124CDFCF</pre> |
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=={{header|BBC BASIC}}== |
=={{header|BBC BASIC}}== |
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