1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
| function TForm1.md5(const Input: String): String;
var
hCryptProvider: HCRYPTPROV;
hHash: HCRYPTHASH;
bHash: array[0..$7f] of Byte;
dwHashBytes: Cardinal;
pbContent: PByte;
i: Integer;
begin
dwHashBytes := 16;
pbContent := Pointer(PChar(Input));
Result := '';
if CryptAcquireContext(@hCryptProvider, nil, nil, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT or CRYPT_MACHINE_KEYSET) then
begin
if CryptCreateHash(hCryptProvider, CALG_MD5, 0, 0, @hHash) then
begin
if CryptHashData(hHash, pbContent, Length(Input) * sizeof(Char), 0) then
begin
if CryptGetHashParam(hHash, HP_HASHVAL, @bHash[0], @dwHashBytes, 0) then
begin
for i := 0 to dwHashBytes - 1 do
begin
Result := Result + Format('%.2x', [bHash[i]]);
end;
end;
end;
CryptDestroyHash(hHash);
end;
CryptReleaseContext(hCryptProvider, 0);
end;
Result := AnsiLowerCase(Result);
end; |
Partager