SQL Server
SQL Server
Verify and Unwrap S/MIME, and get Information about CMS Signature
See more MIME Examples
Demonstrates calling the Verify method to verify and unwrap S/MIME. The MIME is restored to the original structure that it would have originally had prior to signing. The Verify method works with both detached signatures, as well as opaque/attached signatures.Calls LastJsonData to get information about the signature(s) that were verified.
Chilkat SQL Server Downloads
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
DECLARE @hr int
-- Important: Do not use nvarchar(max). See the warning about using nvarchar(max).
DECLARE @sTmp0 nvarchar(4000)
DECLARE @success int
SELECT @success = 0
-- This example requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.
DECLARE @mime int
EXEC @hr = sp_OACreate 'Chilkat.Mime', @mime OUT
IF @hr <> 0
BEGIN
PRINT 'Failed to create ActiveX component'
RETURN
END
-- Load the signed MIME from a file...
EXEC sp_OAMethod @mime, 'LoadMimeFile', @success OUT, 'qa_data/mime/detached_sig.eml'
IF @success = 0
BEGIN
EXEC sp_OAGetProperty @mime, 'LastErrorText', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @mime
RETURN
END
-- Verify the S/MIME and restore the MIME
-- to the structure/content it had prior to signing.
DECLARE @verified int
EXEC sp_OAMethod @mime, 'Verify', @verified OUT
IF @verified = 0
BEGIN
EXEC sp_OAGetProperty @mime, 'LastErrorText', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @mime
RETURN
END
-- Examine the details of what was verified.
DECLARE @json int
EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT
EXEC sp_OAMethod @mime, 'GetLastJsonData', NULL, @json
EXEC sp_OASetProperty @json, 'EmitCompact', 0
EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
PRINT @sTmp0
-- The code to parse the following JSON (i.e. extract desired information) is shown below..
-- {
-- "pkcs7": {
-- "verify": {
-- "certs": [
-- {
-- "issuerCN": "VeriSign Class 1 Public Primary Certification Authority - G3",
-- "serial": "0702A21A85B84B659E180A6EE6F5A365"
-- },
-- {
-- "issuerCN": "VeriSign Class 1 Public Primary Certification Authority - G3",
-- "serial": "008B5B75568454850B00CFAF3848CEB1A4"
-- },
-- {
-- "issuerCN": "Symantec Class 1 Individual Subscriber CA - G5",
-- "serial": "619C55C32FF6BD1A7B7E0330D21C8F3C"
-- }
-- ],
-- "digestAlgorithms": [
-- "sha1"
-- ],
-- "signerInfo": [
-- {
-- "cert": {
-- "serialNumber": "619C55C32FF6BD1A7B7E0330D21C8F3C",
-- "issuerCN": "Symantec Class 1 Individual Subscriber CA - G5",
-- "digestAlgOid": "1.3.14.3.2.26",
-- "digestAlgName": "SHA1"
-- },
-- "contentType": "1.2.840.113549.1.7.1",
-- "signingTime": "160428055000Z",
-- "messageDigest": "2hJJVmO/jtaJV5uCKMFzIkRRvtY=",
-- "signingAlgOid": "1.2.840.113549.1.1.1",
-- "signingAlgName": "RSA-PKCSV-1_5",
-- "authAttr": {
-- "1.2.840.113549.1.9.3": {
-- "name": "contentType",
-- "oid": "1.2.840.113549.1.7.1"
-- },
-- "1.2.840.113549.1.9.5": {
-- "name": "signingTime",
-- "utctime": "160428055000Z"
-- },
-- "1.2.840.113549.1.9.4": {
-- "name": "messageDigest",
-- "digest": "2hJJVmO/jtaJV5uCKMFzIkRRvtY="
-- },
-- "1.2.840.113549.1.9.15": {
-- "der": "MFAwCwYJYIZIAWUDBAECMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDANBggqhkiG9w0DAgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKA=="
-- },
-- "1.3.6.1.4.1.311.16.4": {
-- "der": "MIG7MIG...7fgMw0hyPPA=="
-- }
-- }
-- }
-- ]
-- }
-- }
-- }
-- Use this online tool to generate parsing code from sample JSON:
-- Generate Parsing Code from JSON
DECLARE @signingTime int
EXEC @hr = sp_OACreate 'Chilkat.DtObj', @signingTime OUT
DECLARE @authAttrSigningTimeUtctime int
EXEC @hr = sp_OACreate 'Chilkat.DtObj', @authAttrSigningTimeUtctime OUT
DECLARE @issuerCN nvarchar(4000)
DECLARE @serial nvarchar(4000)
DECLARE @strVal nvarchar(4000)
DECLARE @certSerialNumber nvarchar(4000)
DECLARE @certIssuerCN nvarchar(4000)
DECLARE @certDigestAlgOid nvarchar(4000)
DECLARE @certDigestAlgName nvarchar(4000)
DECLARE @contentType nvarchar(4000)
DECLARE @messageDigest nvarchar(4000)
DECLARE @signingAlgOid nvarchar(4000)
DECLARE @signingAlgName nvarchar(4000)
DECLARE @authAttrContentTypeName nvarchar(4000)
DECLARE @authAttrContentTypeOid nvarchar(4000)
DECLARE @authAttrSigningTimeName nvarchar(4000)
DECLARE @authAttrMessageDigestName nvarchar(4000)
DECLARE @authAttrMessageDigestDigest nvarchar(4000)
DECLARE @authAttr1_2_840_113549_1_9_15Der nvarchar(4000)
DECLARE @authAttr1_3_6_1_4_1_311_16_4Der nvarchar(4000)
DECLARE @i int
SELECT @i = 0
DECLARE @count_i int
EXEC sp_OAMethod @json, 'SizeOfArray', @count_i OUT, 'pkcs7.verify.certs'
WHILE @i < @count_i
BEGIN
EXEC sp_OASetProperty @json, 'I', @i
EXEC sp_OAMethod @json, 'StringOf', @issuerCN OUT, 'pkcs7.verify.certs[i].issuerCN'
EXEC sp_OAMethod @json, 'StringOf', @serial OUT, 'pkcs7.verify.certs[i].serial'
SELECT @i = @i + 1
END
SELECT @i = 0
EXEC sp_OAMethod @json, 'SizeOfArray', @count_i OUT, 'pkcs7.verify.digestAlgorithms'
WHILE @i < @count_i
BEGIN
EXEC sp_OASetProperty @json, 'I', @i
EXEC sp_OAMethod @json, 'StringOf', @strVal OUT, 'pkcs7.verify.digestAlgorithms[i]'
SELECT @i = @i + 1
END
SELECT @i = 0
EXEC sp_OAMethod @json, 'SizeOfArray', @count_i OUT, 'pkcs7.verify.signerInfo'
WHILE @i < @count_i
BEGIN
EXEC sp_OASetProperty @json, 'I', @i
EXEC sp_OAMethod @json, 'StringOf', @certSerialNumber OUT, 'pkcs7.verify.signerInfo[i].cert.serialNumber'
EXEC sp_OAMethod @json, 'StringOf', @certIssuerCN OUT, 'pkcs7.verify.signerInfo[i].cert.issuerCN'
EXEC sp_OAMethod @json, 'StringOf', @certDigestAlgOid OUT, 'pkcs7.verify.signerInfo[i].cert.digestAlgOid'
EXEC sp_OAMethod @json, 'StringOf', @certDigestAlgName OUT, 'pkcs7.verify.signerInfo[i].cert.digestAlgName'
EXEC sp_OAMethod @json, 'StringOf', @contentType OUT, 'pkcs7.verify.signerInfo[i].contentType'
EXEC sp_OAMethod @json, 'DtOf', @success OUT, 'pkcs7.verify.signerInfo[i].signingTime', 0, @signingTime
EXEC sp_OAMethod @json, 'StringOf', @messageDigest OUT, 'pkcs7.verify.signerInfo[i].messageDigest'
EXEC sp_OAMethod @json, 'StringOf', @signingAlgOid OUT, 'pkcs7.verify.signerInfo[i].signingAlgOid'
EXEC sp_OAMethod @json, 'StringOf', @signingAlgName OUT, 'pkcs7.verify.signerInfo[i].signingAlgName'
EXEC sp_OAMethod @json, 'StringOf', @authAttrContentTypeName OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.3".name'
EXEC sp_OAMethod @json, 'StringOf', @authAttrContentTypeOid OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.3".oid'
EXEC sp_OAMethod @json, 'StringOf', @authAttrSigningTimeName OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.5".name'
EXEC sp_OAMethod @json, 'DtOf', @success OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.5".utctime', 0, @authAttrSigningTimeUtctime
EXEC sp_OAMethod @json, 'StringOf', @authAttrMessageDigestName OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.4".name'
EXEC sp_OAMethod @json, 'StringOf', @authAttrMessageDigestDigest OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.4".digest'
EXEC sp_OAMethod @json, 'StringOf', @authAttr1_2_840_113549_1_9_15Der OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.2.840.113549.1.9.15".der'
EXEC sp_OAMethod @json, 'StringOf', @authAttr1_3_6_1_4_1_311_16_4Der OUT, 'pkcs7.verify.signerInfo[i].authAttr."1.3.6.1.4.1.311.16.4".der'
SELECT @i = @i + 1
END
EXEC @hr = sp_OADestroy @mime
EXEC @hr = sp_OADestroy @json
EXEC @hr = sp_OADestroy @signingTime
EXEC @hr = sp_OADestroy @authAttrSigningTimeUtctime
END
GO