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(Unicode C) Hungary NAV Invoicing Signature CalculationDemonstrates the requestSignature calculation for the Hungarian NAV Online Invoicing System REST API v2.0. Note: This example requires Chilkat v9.5.0.83 or greater. For more information, see https://onlineszamla.nav.gov.hu/api/files/container/download/Online%20Szamla_Interfesz%20specifik%C3%A1ci%C3%B3_EN_v2.0.pdf
#include <C_CkCrypt2W.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { BOOL success; HCkCrypt2W crypt; const wchar_t *requestId; const wchar_t *timestamp; const wchar_t *signatureKey; HCkStringBuilderW sbFinalHashBase; int numReplaced; const wchar_t *invoiceOperation; const wchar_t *invoiceData; HCkStringBuilderW sbHashBase; const wchar_t *firstHash; const wchar_t *secondHash; const wchar_t *requestSignature; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example performs the following calculation: // 1.5.1 Calculations for manageInvoice and manageAnnulment operations // // For the manageInvoice and manageAnnulment operations comprising the core of requestSignature, // requestSignature is calculated using partial authentication, concatenating the hash values for // indices 1-100 as well as additional SHA3-512 hash operations. The partial authentication can be // derived by concatenating the following values: // // - requestId value // - UTC timestamp tag value using a YYYYMMDDhhmmss mask // - string literal of the technical users signature key // // When concatenating, the date and time separators as well as the time zone must be removed for timestamp masking. // // The index hash value can be derived from the uppercase SHA3-512 hash values following the concatenation of the // operation and base64 content for the individual indices: // // - literal value of invoiceOperation or annulmentOperation // - base64 content in the invoiceData or invoiceAnnulment tag // // The calculated hash values should be appended after the partial hash, in the order corresponding to the indices. // The SHA3-512 hash result (capitals) of the string thus concatenated yields the requestSignature value. // // A fictitious example for request data: // // - requestId = TSTKFT1222564 // - timestamp = 2017-12-30T18:25:45.000Z // - technical users signature key = ce-8f5e-215119fa7dd621DLMRHRLH2S // - the index#1 invoice data items // - invoiceOperation = CREATE // - invoiceData = QWJjZDEyMzQ= // - the index#2 invoice data items // - invoiceOperation = MODIFY // - invoiceData = RGNiYTQzMjE= // - partial authentication value = TSTKFT122256420171230182545ce-8f5e-215119fa7dd621DLMRHRLH2S // - the first index hash = // - hash base = CREATEQWJjZDEyMzQ= // - lowercase hash = 4317798460962869bc67f07c48ea7e4a3afa301513ceb87b8eb94ecf92bc220a89c480f87f0860e85e29a3b6c0463d4f29712c5ad48104a6486ce839dc2f24cb // - uppercase hash = 4317798460962869BC67F07C48EA7E4A3AFA301513CEB87B8EB94ECF92BC220A89C480F87F0860E85E29A3B6C0463D4F29712C5AD48104A6486CE839DC2F24CB // - the second index hash = // - hash base = MODIFYRGNiYTQzMjE= // - lowercase hash = a881218238933f6ffb9e167445cb4daa9749bcf484fde48ab7649fd25e8b634a4736a65a7c4a8e2831119f739837e006566f97370415aad55e268605206f2a6c // - uppercase hash = A881218238933F6FFB9E167445CB4DAA9749BCF484FDE48AB7649FD25E8B634A4736A65A7C4A8E2831119F739837E006566F97370415AAD55E268605206F2A6C // // Thus, the base for the entire requestSignature is: // TSTKFT122256420171230182545ce-8f5e-215119fa7dd621DLMRHRLH2S4317798460962869BC67F07C48EA7E4A3AFA301513CEB87B8EB94ECF92BC220A89C480F87F0860E85E29A3B6C0463D4F29712C5AD48104A6486CE839DC2F24CBA881218238933F6FFB9E167445CB4DAA9749BCF484FDE48AB7649FD25E8B634A4736A65A7C4A8E2831119F739837E006566F97370415AAD55E268605206F2A6C // // Value of requestSignature after SHA3-512 hashing and converting to uppercase: // 60BC80609EE3B8F42FE904200A49A1921A1DADA08D55319ACD40C59F626514B74EEA49011D372600A10DBCF8199D590DA9C2841D987308F2D83DAE17C2470C42 // // ------------------- crypt = CkCrypt2W_Create(); // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater. The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions. // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater. The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions. // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater. The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions. // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater. The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions. // IMPORTANT: This example requires Chilkat v9.5.0.83 or greater. The SHA3 hash algorithm is implemented in Chilkat v9.5.0.83, but not in earlier versions. CkCrypt2W_putHashAlgorithm(crypt,L"sha3-512"); CkCrypt2W_putEncodingMode(crypt,L"hex"); requestId = L"TSTKFT1222564"; timestamp = L"2017-12-30T18:25:45.000Z"; signatureKey = L"ce-8f5e-215119fa7dd621DLMRHRLH2S"; // Step 1: Concatenate requestId, UTC timestamp, and user's signature key. sbFinalHashBase = CkStringBuilderW_Create(); // First append the timestamp because we are going to remove certain chars/parts. CkStringBuilderW_Append(sbFinalHashBase,timestamp); numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L".000Z",L""); numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L"-",L""); numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L":",L""); numReplaced = CkStringBuilderW_Replace(sbFinalHashBase,L"T",L""); // Prepend the requestId and append the signatureKey CkStringBuilderW_Prepend(sbFinalHashBase,requestId); CkStringBuilderW_Append(sbFinalHashBase,signatureKey); // Step 2: Calculate first index hash. invoiceOperation = L"CREATE"; invoiceData = L"QWJjZDEyMzQ="; sbHashBase = CkStringBuilderW_Create(); CkStringBuilderW_Append(sbHashBase,invoiceOperation); CkStringBuilderW_Append(sbHashBase,invoiceData); wprintf(L"first hash base = %s\n",CkStringBuilderW_getAsString(sbHashBase)); firstHash = CkCrypt2W_hashStringENC(crypt,CkStringBuilderW_getAsString(sbHashBase)); wprintf(L"first hash = %s\n",firstHash); // Output should be: // first hash base = CREATEQWJjZDEyMzQ= // first hash = 4317798460962869BC67F07C48EA7E4A3AFA301513CEB87B8EB94ECF92BC220A89C480F87F0860E85E29A3B6C0463D4F29712C5AD48104A6486CE839DC2F24CB // Step 3: Calculate second index hash. invoiceOperation = L"MODIFY"; invoiceData = L"RGNiYTQzMjE="; CkStringBuilderW_Clear(sbHashBase); CkStringBuilderW_Append(sbHashBase,invoiceOperation); CkStringBuilderW_Append(sbHashBase,invoiceData); wprintf(L"second hash base = %s\n",CkStringBuilderW_getAsString(sbHashBase)); secondHash = CkCrypt2W_hashStringENC(crypt,CkStringBuilderW_getAsString(sbHashBase)); wprintf(L"second hash = %s\n",secondHash); // Output should be: // second hash base = MODIFYRGNiYTQzMjE= // second hash = A881218238933F6FFB9E167445CB4DAA9749BCF484FDE48AB7649FD25E8B634A4736A65A7C4A8E2831119F739837E006566F97370415AAD55E268605206F2A6C // Step 4: Append the uppercase hex hashes to the sbFinalHashBase CkStringBuilderW_Append(sbFinalHashBase,firstHash); CkStringBuilderW_Append(sbFinalHashBase,secondHash); wprintf(L"sbFinalHashBase = %s\n",CkStringBuilderW_getAsString(sbFinalHashBase)); // Step 5: SHA3-512 hash to get the requestSignature requestSignature = CkCrypt2W_hashStringENC(crypt,CkStringBuilderW_getAsString(sbFinalHashBase)); wprintf(L"requestSignature = %s\n",requestSignature); // Output should be: // requestSignature = 60BC80609EE3B8F42FE904200A49A1921A1DADA08D55319ACD40C59F626514B74EEA49011D372600A10DBCF8199D590DA9C2841D987308F2D83DAE17C2470C42 CkCrypt2W_Dispose(crypt); CkStringBuilderW_Dispose(sbFinalHashBase); CkStringBuilderW_Dispose(sbHashBase); } |
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