No code within BoringSSL or Google (grep for EVP_PKEY_CTX_(ctrl|get|set)) is
sensitive to the various failure cases. Normalize it all to 0/1 for simplicity.
This does carry a slight risk: any new ctrl hooks we import from upstream that,
like EVP_PKEY_CTX_get_rsa_oaep_md, return something other than success/failure
cannot be called directly via EVP_PKEY_CTX_ctrl. They instead need to
internally be routed through a struct like CBS and only called through the
wrappers. To that end, unexport EVP_PKEY_CTX_ctrl and require that callers use
the wrappers. No code in Google uses it directly and, if need be, switching to
the wrapper would be an incredibly upstreamable patch.
Change-Id: I3fd4e5a1a0f3d4d1c4122c52d4c74a5105b99cd5
Reviewed-on: https://boringssl-review.googlesource.com/3874
Reviewed-by: Adam Langley <agl@google.com>
This is intended for TLS client auth with Windows CAPI- and CNG-backed keys
which implement sign over sign_raw and do not support all hash functions. Only
plumbed through RSA for now.
Change-Id: Ica42e7fb026840f817a169da9372dda226f7d6fd
Reviewed-on: https://boringssl-review.googlesource.com/2250
Reviewed-by: Adam Langley <agl@google.com>
The only alias, EVP_PKEY_RSA2, is handled programmatically. ASN1_PKEY_ALIAS and
ASN1_PKEY_DYNAMIC are then unused and unexported and can be removed.
Change-Id: I990650636bac3b802c8b439257c67ce7a3f8bc70
Reviewed-on: https://boringssl-review.googlesource.com/2124
Reviewed-by: Adam Langley <agl@google.com>
Factor the AlgorithmIdentifier portions of ASN1_item_sign and ASN1_item_verify
out. This makes it possible to initialize a signature context from an
AlgorithmIdentifier without needing the data parsed into an ASN1_ITEM/void*
pair and reserialized.
Change-Id: Idc2e06b1310a3f801aa25de323d39d2b7a44ef50
Reviewed-on: https://boringssl-review.googlesource.com/1916
Reviewed-by: Adam Langley <agl@google.com>
Custom RSA and ECDSA keys may not expose the key material. Plumb and "opaque"
bit out of the *_METHOD up to EVP_PKEY. Query that in ssl_rsa.c to skip the
sanity checks for certificate and key matching.
Change-Id: I362a2d5116bfd1803560dfca1d69a91153e895fc
Reviewed-on: https://boringssl-review.googlesource.com/1255
Reviewed-by: Adam Langley <agl@google.com>
Converting check_autoarg from a macro to a function lost the behavior. Instead,
just move the logic into p_rsa.c which was the only EVP_PKEY implementation
that even needed the flag.
Also document this behavior on each of the functions. Make note of the out =
NULL case only returning the maximum output size, and not necessarily the
actual size.
For testing, update example_sign to determine the signature size using the NULL
behavior rather than querying the RSA key.
Change-Id: Iec6c2862028a5cfdefe8faa0e8c471755070898a
Reviewed-on: https://boringssl-review.googlesource.com/1121
Reviewed-by: Adam Langley <agl@google.com>
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
