Add a compatibility EVP_DigestFinalXOF function.
This is to ease compiling against cryptography.io. (It expects anything
which has EVP_DigestSign to also have this function.)
Change-Id: I2bb4f4f01770d789e68fe84beed3393b1f004081
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/35805
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/digest.h b/include/openssl/digest.h
index 1a1ca29..c7c6797 100644
--- a/include/openssl/digest.h
+++ b/include/openssl/digest.h
@@ -269,6 +269,11 @@
// EVP_MD_CTX_destroy calls |EVP_MD_CTX_free|.
OPENSSL_EXPORT void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
+// EVP_DigestFinalXOF returns zero and adds an error to the error queue.
+// BoringSSL does not support any XOF digests.
+OPENSSL_EXPORT int EVP_DigestFinalXOF(EVP_MD_CTX *ctx, uint8_t *out,
+ size_t len);
+
struct evp_md_pctx_ops;
