1KCAPI_AKCIPHER_STREA(3)      Programming Interface     KCAPI_AKCIPHER_STREA(3)
2
3
4

NAME

6       kcapi_akcipher_stream_init_vfy - start an signature verification
7       operation (stream)
8

SYNOPSIS

10       int32_t kcapi_akcipher_stream_init_vfy(struct kcapi_handle * handle,
11                                              struct iovec * iov,
12                                              uint32_t iovlen);
13

ARGUMENTS

15       handle
16           [in] cipher handle
17
18       iov
19           [in] scatter/gather list with data to be verified. This is the
20           pointer to the first iov entry if an array of iov entries is
21           supplied. See sendmsg(2) for details on how iov is to be used. This
22           pointer may be NULL if no data to be verified is available at the
23           point of the call.
24
25       iovlen
26           [in] number of scatter/gather list elements. If iov is NULL, this
27           value must be zero.
28

DESCRIPTION

30       A stream signature verification operation is started with this call.
31       Multiple successive kcapi_akcipher_stream_update function calls can be
32       invoked to send more plaintext data to be verified. The last invocation
33       to supply data must be done with kcapi_akcipher_stream_update_last. The
34       kernel buffers the input until kcapi_akcipher_stream_op picks up the
35       verified data. Once plaintext is verified during the
36       kcapi_cipher_stream_op it is removed from the kernel buffer.
37
38       The function calls of kcapi_akcipher_stream_update and
39       kcapi_akcipher_stream_op can be mixed, even by multiple threads of an
40       application.
41
42       return number of bytes sent to the kernel upon success; a negative
43       errno-style error code if an error occurred
44

AUTHOR

46       Stephan Mueller <smueller@chronox.de>
47           Author.
48

50libkcapi Manual 1.1.5            January 2020          KCAPI_AKCIPHER_STREA(3)
Impressum