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Diffstat (limited to 'src/compat.erl')
| -rw-r--r-- | src/compat.erl | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/compat.erl b/src/compat.erl new file mode 100644 index 0000000..bc3101d --- /dev/null +++ b/src/compat.erl @@ -0,0 +1,29 @@ +-module(compat). +-export([unpack_issuer/1, unpack_signature/1]). +-include_lib("public_key/include/public_key.hrl"). + +unpack_issuer(Issuer) -> + unpack_issuer(erlang:system_info(otp_release), Issuer). +unpack_signature(Signature) -> + unpack_signature(erlang:system_info(otp_release), Signature). + +%% @doc Dig out alg, params and key from issuer. +unpack_issuer(17, Issuer) -> + #'SubjectPublicKeyInfo'{ + algorithm = #'AlgorithmIdentifier'{algorithm = Alg, parameters = Params}, + subjectPublicKey = {0, Key}} = Issuer, + {Alg, Params, Key}; +unpack_issuer(18, Issuer) -> + #'SubjectPublicKeyInfo'{ + algorithm = #'AlgorithmIdentifier'{algorithm = Alg, parameters = Params}, + subjectPublicKey = Key} = Issuer, + {Alg, Params, Key}. + +%% @doc Unpack a #'Certificate'.signature, return the signature. +unpack_signature(17, Signature) -> + {_, Sig} = Signature, + Sig; +unpack_signature(18, Signature) -> + Signature. + + |