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-rw-r--r--lib/public_key/src/public_key.erl38
1 files changed, 32 insertions, 6 deletions
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl
index 52c695523f..9a90ffe888 100644
--- a/lib/public_key/src/public_key.erl
+++ b/lib/public_key/src/public_key.erl
@@ -23,11 +23,10 @@
-include("public_key.hrl").
--export([decode_private_key/1, decode_private_key/2,
+-export([decode_private_key/1, decode_private_key/2, decode_dhparams/1,
decrypt_private/2, decrypt_private/3, encrypt_public/2,
encrypt_public/3, decrypt_public/2, decrypt_public/3,
- encrypt_private/2, encrypt_private/3,
- sign/2, sign/3,
+ encrypt_private/2, encrypt_private/3, gen_key/1, sign/2, sign/3,
verify_signature/3, verify_signature/4, verify_signature/5,
pem_to_der/1, pem_to_der/2,
pkix_decode_cert/2, pkix_encode_cert/1, pkix_transform/2,
@@ -62,6 +61,21 @@ decode_private_key(KeyInfo = {dsa_private_key, _, _}, Password) ->
DerEncoded = pubkey_pem:decode_key(KeyInfo, Password),
'OTP-PUB-KEY':decode('DSAPrivateKey', DerEncoded).
+
+%%--------------------------------------------------------------------
+%% Function: decode_dhparams(DhParamInfo) ->
+%% {ok, DhParams} | {error, Reason}
+%%
+%% DhParamsInfo = {Type, der_bin(), ChipherInfo} - as returned from
+%% pem_to_der/[1,2] for DH parameters.
+%% Type = dh_params
+%% ChipherInfo = opaque() | no_encryption
+%%
+%% Description: Decodes an asn1 der encoded DH parameters.
+%%--------------------------------------------------------------------
+decode_dhparams({dh_params, DerEncoded, not_encrypted}) ->
+ 'OTP-PUB-KEY':decode('DHParameter', DerEncoded).
+
%%--------------------------------------------------------------------
%% Function: decrypt_private(CipherText, Key) ->
%% decrypt_private(CipherText, Key, Options) -> PlainTex
@@ -109,6 +123,18 @@ encrypt_private(PlainText, Key, Options) ->
pubkey_crypto:encrypt_private(PlainText, Key, Padding).
%%--------------------------------------------------------------------
+%% Function: gen_key(Params) -> Keys
+%%
+%% Params = #'DomainParameters'{} - Currently only supported option
+%% Keys = {PublicDHKey = integer(), PrivateDHKey = integer()}
+%%
+%% Description: Generates keys. Currently supports Diffie-Hellman keys.
+%%--------------------------------------------------------------------
+gen_key(#'DHParameter'{prime = P, base = G}) when is_integer(P),
+ is_integer(G) ->
+ pubkey_crypto:gen_key(diffie_hellman, [P, G]).
+
+%%--------------------------------------------------------------------
%% Function: pem_to_der(CertSource) ->
%% pem_to_der(CertSource, Password) -> {ok, [Entry]} |
%% {error, Reason}
@@ -116,7 +142,6 @@ encrypt_private(PlainText, Key, Options) ->
%% CertSource = File | CertData
%% CertData = binary()
%% File = path()
-%% Password = string()
%% Entry = {entry_type(), der_bin(), ChipherInfo}
%% ChipherInfo = opague() | no_encryption
%% der_bin() = binary()
@@ -127,7 +152,9 @@ encrypt_private(PlainText, Key, Options) ->
%% entries as asn1 der encoded entities. Currently supported entry
%% types are certificates, certificate requests, rsa private keys and
%% dsa private keys. In the case of a key entry ChipherInfo will be
-%% used by decode_private_key/2 if the key is protected by a password.
+%% private keys and Diffie Hellam parameters .In the case of a key
+%% entry ChipherInfo will be used by decode_private_key/2 if the key
+%% is protected by a password.
%%--------------------------------------------------------------------
pem_to_der(CertSource) ->
pem_to_der(CertSource, no_passwd).
@@ -136,7 +163,6 @@ pem_to_der(File, Password) when is_list(File) ->
pubkey_pem:read_file(File, Password);
pem_to_der(PemBin, Password) when is_binary(PemBin) ->
pubkey_pem:decode(PemBin, Password).
-
%%--------------------------------------------------------------------
%% Function: pkix_decode_cert(BerCert, Type) -> {ok, Cert} | {error, Reason}
%%