cmsMakeEnvDataFromBytes

Create a CMS enveloped-data object from data in a byte array.

Syntax

Public Function cmsMakeEnvDataFromBytes ( _
    szFileOut As String, _
    lpInput() As Byte, _
    szCertList As String, _
    Optional szKeyString As String = "", _
    Optional nOptions As Long = 0, _
    Optional nCount As Long = 0 _
) As Long

Parameters

szFileOut

Name of output file to be created.

lpInput

Input data.

szCertList

List of one or more recipient X.509 certificate filenames, separated by semicolons (;). A certificate's representation in base64 or as a PEM string may be used instead of a filename. Alternatively, specify a single PKCS#7 certificate chain file (.p7c/.p7b).
Special cases: Set as "type=@pwri" to create a single recipientInfo of the PasswordRecipientInfo (pwri) type; or set as "type=@kekri,keyid=<string>" to create a single recipientInfo of the KEKRecipientInfo (kekri) type. See Remarks.

szKeyString

(formerly szSeed) Use to pass optional additional user key material (ukm) for KDF where KeyAgreement (kari) type is used. Or use to pass the password for a pwri type or the key encryption key (KEK) for a kekri type. Either pass a plain ASCII string, e.g. "abc" or use the format "#x<hex-digits>" to pass a string of arbitrary octet values, e.g. "#xdeadbeef01" to pass the 5 bytes 0xde,0xad,0xbe,0xef,0x01. Required for pwri and kekri types.

nOptions

See the options in cmsMakeEnvData.

nCount

Use to pass the iteration count for a pwri type (default=4096) or tag length for AuthEnvelopedData (in range 12-16, default=16). Otherwise ignored.

Return Value

Remarks