X509.GetCertFromP7Chain Method

CryptoSys PKI Toolkit Manual

X509.GetCertFromP7Chain Method

Extracts an X.509 certificate from a PKCS-7 "certs-only" certificate chain file, saving the output directly as a new file.

Syntax

[C#]

public static int GetCertFromP7Chain(
	string outputFile,
	string inputFile,
	int index
)

[VB.NET]

Public Shared Function GetCertFromP7Chain ( _
	outputFile As String, _
	inputFile As String, _
	index As Integer _
) As Integer

Parameters

outputFile: Name of output file to be created
inputFile: Name of the PKCS-7 "certs-only" file
index: specifying which certificate (1,2,...) in the chain to extract, or 0 to return the count of certificates in the set

Return Value

If successful and index is greater than zero, it returns the number of bytes written to the output file, which may be zero if no certificate could be found at the given index. However, if index is zero, it returns the count of certificates found in the list. If an error occurred, it returns a negative error code.

Remarks

Refer to the manual for further information and remarks on the use of this function.

Examples (VB.NET)

See Example1