Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/Documentation/crypto/api.rst b/Documentation/crypto/api.rst
new file mode 100644
index 000000000..2e519193a
--- /dev/null
+++ b/Documentation/crypto/api.rst
@@ -0,0 +1,25 @@
+Programming Interface
+=====================
+
+Please note that the kernel crypto API contains the AEAD givcrypt API
+(crypto_aead_giv\* and aead_givcrypt\* function calls in
+include/crypto/aead.h). This API is obsolete and will be removed in the
+future. To obtain the functionality of an AEAD cipher with internal IV
+generation, use the IV generator as a regular cipher. For example,
+rfc4106(gcm(aes)) is the AEAD cipher with external IV generation and
+seqniv(rfc4106(gcm(aes))) implies that the kernel crypto API generates
+the IV. Different IV generators are available.
+
+.. class:: toc-title
+
+	   Table of contents
+
+.. toctree::
+   :maxdepth: 2
+
+   api-skcipher
+   api-aead
+   api-digest
+   api-rng
+   api-akcipher
+   api-kpp