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(JavaScript) Hungary NAV Invoicing Signature Calculation
Demonstrates 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
var success = false;
// 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 user�s 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 user�s 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
//
// -------------------
var crypt = new CkCrypt2();
// 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.
crypt.HashAlgorithm = "sha3-512";
crypt.EncodingMode = "hex";
var requestId = "TSTKFT1222564";
var timestamp = "2017-12-30T18:25:45.000Z";
var signatureKey = "ce-8f5e-215119fa7dd621DLMRHRLH2S";
// Step 1: Concatenate requestId, UTC timestamp, and user's signature key.
var sbFinalHashBase = new CkStringBuilder();
// First append the timestamp because we are going to remove certain chars/parts.
sbFinalHashBase.Append(timestamp);
var numReplaced = sbFinalHashBase.Replace(".000Z","");
numReplaced = sbFinalHashBase.Replace("-","");
numReplaced = sbFinalHashBase.Replace(":","");
numReplaced = sbFinalHashBase.Replace("T","");
// Prepend the requestId and append the signatureKey
sbFinalHashBase.Prepend(requestId);
sbFinalHashBase.Append(signatureKey);
// Step 2: Calculate first index hash.
var invoiceOperation = "CREATE";
var invoiceData = "QWJjZDEyMzQ=";
var sbHashBase = new CkStringBuilder();
sbHashBase.Append(invoiceOperation);
sbHashBase.Append(invoiceData);
console.log("first hash base = " + sbHashBase.GetAsString());
var firstHash = crypt.HashStringENC(sbHashBase.GetAsString());
console.log("first hash = " + firstHash);
// Output should be:
// first hash base = CREATEQWJjZDEyMzQ=
// first hash = 4317798460962869BC67F07C48EA7E4A3AFA301513CEB87B8EB94ECF92BC220A89C480F87F0860E85E29A3B6C0463D4F29712C5AD48104A6486CE839DC2F24CB
// Step 3: Calculate second index hash.
invoiceOperation = "MODIFY";
invoiceData = "RGNiYTQzMjE=";
sbHashBase.Clear();
sbHashBase.Append(invoiceOperation);
sbHashBase.Append(invoiceData);
console.log("second hash base = " + sbHashBase.GetAsString());
var secondHash = crypt.HashStringENC(sbHashBase.GetAsString());
console.log("second hash = " + secondHash);
// Output should be:
// second hash base = MODIFYRGNiYTQzMjE=
// second hash = A881218238933F6FFB9E167445CB4DAA9749BCF484FDE48AB7649FD25E8B634A4736A65A7C4A8E2831119F739837E006566F97370415AAD55E268605206F2A6C
// Step 4: Append the uppercase hex hashes to the sbFinalHashBase
sbFinalHashBase.Append(firstHash);
sbFinalHashBase.Append(secondHash);
console.log("sbFinalHashBase = " + sbFinalHashBase.GetAsString());
// Step 5: SHA3-512 hash to get the requestSignature
var requestSignature = crypt.HashStringENC(sbFinalHashBase.GetAsString());
console.log("requestSignature = " + requestSignature);
// Output should be:
// requestSignature = 60BC80609EE3B8F42FE904200A49A1921A1DADA08D55319ACD40C59F626514B74EEA49011D372600A10DBCF8199D590DA9C2841D987308F2D83DAE17C2470C42
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