diff options
Diffstat (limited to 'lib/public_key/src/public_key.erl')
| -rw-r--r-- | lib/public_key/src/public_key.erl | 137 |
1 files changed, 96 insertions, 41 deletions
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl index 095a6ff0e0..2901020e83 100644 --- a/lib/public_key/src/public_key.erl +++ b/lib/public_key/src/public_key.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2008-2010. All Rights Reserved. +%% Copyright Ericsson AB 2008-2011. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -41,7 +41,8 @@ pkix_is_issuer/2, pkix_issuer_id/2, pkix_normalize_name/1, - pkix_path_validation/3 + pkix_path_validation/3, + ssh_decode/2, ssh_encode/2 ]). %% Deprecated @@ -51,10 +52,6 @@ -deprecated({decode_private_key, 1, next_major_release}). -deprecated({decode_private_key, 2, next_major_release}). --type rsa_public_key() :: #'RSAPublicKey'{}. --type rsa_private_key() :: #'RSAPrivateKey'{}. --type dsa_private_key() :: #'DSAPrivateKey'{}. --type dsa_public_key() :: {integer(), #'Dss-Parms'{}}. -type rsa_padding() :: 'rsa_pkcs1_padding' | 'rsa_pkcs1_oaep_padding' | 'rsa_no_padding'. -type public_crypt_options() :: [{rsa_pad, rsa_padding()}]. @@ -62,11 +59,11 @@ -type dss_digest_type() :: 'none' | 'sha'. -define(UINT32(X), X:32/unsigned-big-integer). +-define(DER_NULL, <<5, 0>>). %%==================================================================== %% API %%==================================================================== - %%-------------------------------------------------------------------- -spec pem_decode(binary()) -> [pem_entry()]. %% @@ -90,6 +87,17 @@ pem_encode(PemEntries) when is_list(PemEntries) -> %% Description: Decodes a pem entry. pem_decode/1 returns a list of %% pem entries. %%-------------------------------------------------------------------- +pem_entry_decode({'SubjectPublicKeyInfo', Der, _}) -> + {_, {'AlgorithmIdentifier', AlgId, Params}, {0, Key0}} + = der_decode('SubjectPublicKeyInfo', Der), + KeyType = pubkey_cert_records:supportedPublicKeyAlgorithms(AlgId), + case KeyType of + 'RSAPublicKey' -> + der_decode(KeyType, Key0); + 'DSAPublicKey' -> + {params, DssParams} = der_decode('DSAParams', Params), + {der_decode(KeyType, Key0), DssParams} + end; pem_entry_decode({Asn1Type, Der, not_encrypted}) when is_atom(Asn1Type), is_binary(Der) -> der_decode(Asn1Type, Der). @@ -114,6 +122,18 @@ pem_entry_decode({Asn1Type, CryptDer, {Cipher, Salt}} = PemEntry, % %% Description: Creates a pem entry that can be feed to pem_encode/1. %%-------------------------------------------------------------------- +pem_entry_encode('SubjectPublicKeyInfo', Entity=#'RSAPublicKey'{}) -> + Der = der_encode('RSAPublicKey', Entity), + Spki = {'SubjectPublicKeyInfo', + {'AlgorithmIdentifier', ?'rsaEncryption', ?DER_NULL}, {0, Der}}, + pem_entry_encode('SubjectPublicKeyInfo', Spki); +pem_entry_encode('SubjectPublicKeyInfo', + {DsaInt, Params=#'Dss-Parms'{}}) when is_integer(DsaInt) -> + KeyDer = der_encode('DSAPublicKey', DsaInt), + ParamDer = der_encode('DSAParams', {params, Params}), + Spki = {'SubjectPublicKeyInfo', + {'AlgorithmIdentifier', ?'id-dsa', ParamDer}, {0, KeyDer}}, + pem_entry_encode('SubjectPublicKeyInfo', Spki); pem_entry_encode(Asn1Type, Entity) when is_atom(Asn1Type) -> Der = der_encode(Asn1Type, Entity), {Asn1Type, Der, not_encrypted}. @@ -128,7 +148,7 @@ pem_entry_encode(Asn1Type, Entity, {Asn1Type, DecryptDer, CipherInfo}. %%-------------------------------------------------------------------- --spec der_decode(asn1_type(), der_encoded()) -> term(). +-spec der_decode(asn1_type(), Der::binary()) -> term(). %% %% Description: Decodes a public key asn1 der encoded entity. %%-------------------------------------------------------------------- @@ -142,7 +162,7 @@ der_decode(Asn1Type, Der) when is_atom(Asn1Type), is_binary(Der) -> end. %%-------------------------------------------------------------------- --spec der_encode(asn1_type(), term()) -> der_encoded(). +-spec der_encode(asn1_type(), term()) -> Der::binary(). %% %% Description: Encodes a public key entity with asn1 DER encoding. %%-------------------------------------------------------------------- @@ -156,7 +176,7 @@ der_encode(Asn1Type, Entity) when is_atom(Asn1Type) -> end. %%-------------------------------------------------------------------- --spec pkix_decode_cert(der_encoded(), plain | otp) -> +-spec pkix_decode_cert(Cert::binary(), plain | otp) -> #'Certificate'{} | #'OTPCertificate'{}. %% %% Description: Decodes an asn1 der encoded pkix certificate. The otp @@ -177,7 +197,7 @@ pkix_decode_cert(DerCert, otp) when is_binary(DerCert) -> end. %%-------------------------------------------------------------------- --spec pkix_encode(asn1_type(), term(), otp | plain) -> der_encoded(). +-spec pkix_encode(asn1_type(), term(), otp | plain) -> Der::binary(). %% %% Description: Der encodes a certificate or part of a certificate. %% This function must be used for encoding certificates or parts of certificates @@ -213,10 +233,13 @@ decrypt_private(CipherText, crypto:mpint(D)], Padding). %%-------------------------------------------------------------------- --spec decrypt_public(CipherText :: binary(), rsa_public_key()) -> +-spec decrypt_public(CipherText :: binary(), rsa_public_key() | rsa_private_key()) -> PlainText :: binary(). --spec decrypt_public(CipherText :: binary(), rsa_public_key(), +-spec decrypt_public(CipherText :: binary(), rsa_public_key() | rsa_private_key(), public_crypt_options()) -> PlainText :: binary(). +%% NOTE: The rsa_private_key() is not part of the documented API it is +%% here for testing purposes, in a real situation this is not a relevant +%% thing to do. %% %% Description: Public key decryption using the public key. %%-------------------------------------------------------------------- @@ -232,10 +255,14 @@ decrypt_public(CipherText,#'RSAPrivateKey'{modulus = N, publicExponent = E}, decrypt_public(CipherText, N,E, Options). %%-------------------------------------------------------------------- --spec encrypt_public(PlainText :: binary(), rsa_public_key()) -> +-spec encrypt_public(PlainText :: binary(), rsa_public_key() | rsa_private_key()) -> CipherText :: binary(). --spec encrypt_public(PlainText :: binary(), rsa_public_key(), +-spec encrypt_public(PlainText :: binary(), rsa_public_key() | rsa_private_key(), public_crypt_options()) -> CipherText :: binary(). + +%% NOTE: The rsa_private_key() is not part of the documented API it is +%% here for testing purposes, in a real situation this is not a relevant +%% thing to do. %% %% Description: Public key encryption using the public key. %%-------------------------------------------------------------------- @@ -280,8 +307,8 @@ encrypt_private(PlainText, #'RSAPrivateKey'{modulus = N, sign(PlainText, DigestType, #'RSAPrivateKey'{modulus = N, publicExponent = E, privateExponent = D}) when is_binary(PlainText), - DigestType == md5; - DigestType == sha -> + (DigestType == md5 orelse + DigestType == sha) -> crypto:rsa_sign(DigestType, sized_binary(PlainText), [crypto:mpint(E), crypto:mpint(N), @@ -330,7 +357,7 @@ verify(PlainText, sha, Signature, {Key, #'Dss-Parms'{p = P, q = Q, g = G}}) crypto:mpint(G), crypto:mpint(Key)]). %%-------------------------------------------------------------------- -spec pkix_sign(#'OTPTBSCertificate'{}, - rsa_private_key() | dsa_private_key()) -> der_encoded(). + rsa_private_key() | dsa_private_key()) -> Der::binary(). %% %% Description: Sign a pkix x.509 certificate. Returns the corresponding %% der encoded 'Certificate'{} @@ -339,7 +366,7 @@ pkix_sign(#'OTPTBSCertificate'{signature = #'SignatureAlgorithm'{algorithm = Alg} = SigAlg} = TBSCert, Key) -> - Msg = pkix_encode('OTPTBSCertificate', TBSCert, otp), + Msg = pkix_encode('OTPTBSCertificate', TBSCert, otp), DigestType = pubkey_cert:digest_type(Alg), Signature = sign(Msg, DigestType, Key), Cert = #'OTPCertificate'{tbsCertificate= TBSCert, @@ -349,7 +376,7 @@ pkix_sign(#'OTPTBSCertificate'{signature = pkix_encode('OTPCertificate', Cert, otp). %%-------------------------------------------------------------------- --spec pkix_verify(der_encoded(), rsa_public_key()| +-spec pkix_verify(Cert::binary(), rsa_public_key()| dsa_public_key()) -> boolean(). %% %% Description: Verify pkix x.509 certificate signature. @@ -365,9 +392,9 @@ pkix_verify(DerCert, #'RSAPublicKey'{} = RSAKey) verify(PlainText, DigestType, Signature, RSAKey). %%-------------------------------------------------------------------- --spec pkix_is_issuer(Cert :: der_encoded()| #'OTPCertificate'{}, - IssuerCert :: der_encoded()| - #'OTPCertificate'{}) -> boolean(). +-spec pkix_is_issuer(Cert::binary()| #'OTPCertificate'{}, + IssuerCert::binary()| + #'OTPCertificate'{}) -> boolean(). %% %% Description: Checks if <IssuerCert> issued <Cert>. %%-------------------------------------------------------------------- @@ -383,7 +410,7 @@ pkix_is_issuer(#'OTPCertificate'{tbsCertificate = TBSCert}, Candidate#'OTPTBSCertificate'.subject). %%-------------------------------------------------------------------- --spec pkix_is_self_signed(der_encoded()| #'OTPCertificate'{}) -> boolean(). +-spec pkix_is_self_signed(Cert::binary()| #'OTPCertificate'{}) -> boolean(). %% %% Description: Checks if a Certificate is self signed. %%-------------------------------------------------------------------- @@ -394,7 +421,7 @@ pkix_is_self_signed(Cert) when is_binary(Cert) -> pkix_is_self_signed(OtpCert). %%-------------------------------------------------------------------- --spec pkix_is_fixed_dh_cert(der_encoded()| #'OTPCertificate'{}) -> boolean(). +-spec pkix_is_fixed_dh_cert(Cert::binary()| #'OTPCertificate'{}) -> boolean(). %% %% Description: Checks if a Certificate is a fixed Diffie-Hellman Cert. %%-------------------------------------------------------------------- @@ -405,14 +432,14 @@ pkix_is_fixed_dh_cert(Cert) when is_binary(Cert) -> pkix_is_fixed_dh_cert(OtpCert). %%-------------------------------------------------------------------- --spec pkix_issuer_id(der_encoded()| #'OTPCertificate'{}, - IssuedBy :: self | other) -> - {ok, {SerialNr :: integer(), - Issuer :: {rdnSequence, - [#'AttributeTypeAndValue'{}]}}} +-spec pkix_issuer_id(Cert::binary()| #'OTPCertificate'{}, + IssuedBy :: self | other) -> + {ok, {SerialNr :: integer(), + Issuer :: {rdnSequence, + [#'AttributeTypeAndValue'{}]}}} | {error, Reason :: term()}. % -%% Description: Returns the issuer id. +%% Description: Returns the issuer id. %%-------------------------------------------------------------------- pkix_issuer_id(#'OTPCertificate'{} = OtpCert, self) -> pubkey_cert:issuer_id(OtpCert, self); @@ -425,8 +452,8 @@ pkix_issuer_id(Cert, Signed) when is_binary(Cert) -> pkix_issuer_id(OtpCert, Signed). %%-------------------------------------------------------------------- --spec pkix_normalize_name({rdnSequence, - [#'AttributeTypeAndValue'{}]}) -> +-spec pkix_normalize_name({rdnSequence, + [#'AttributeTypeAndValue'{}]}) -> {rdnSequence, [#'AttributeTypeAndValue'{}]}. %% @@ -437,8 +464,8 @@ pkix_normalize_name(Issuer) -> pubkey_cert:normalize_general_name(Issuer). %%-------------------------------------------------------------------- --spec pkix_path_validation(der_encoded()| #'OTPCertificate'{} | atom(), - CertChain :: [der_encoded()] , +-spec pkix_path_validation(Cert::binary()| #'OTPCertificate'{} | atom(), + CertChain :: [binary()] , Options :: list()) -> {ok, {PublicKeyInfo :: term(), PolicyTree :: term()}} | @@ -465,7 +492,7 @@ pkix_path_validation(TrustedCert, CertChain, Options) when is_binary(TrustedCert) -> OtpCert = pkix_decode_cert(TrustedCert, otp), pkix_path_validation(OtpCert, CertChain, Options); -pkix_path_validation(#'OTPCertificate'{} = TrustedCert, CertChain, Options) +pkix_path_validation(#'OTPCertificate'{} = TrustedCert, CertChain, Options) when is_list(CertChain), is_list(Options) -> MaxPathDefault = length(CertChain), ValidationState = pubkey_cert:init_validation_state(TrustedCert, @@ -474,6 +501,37 @@ pkix_path_validation(#'OTPCertificate'{} = TrustedCert, CertChain, Options) path_validation(CertChain, ValidationState). %%-------------------------------------------------------------------- +-spec ssh_decode(binary(), public_key | ssh_file()) -> [{public_key(), Attributes::list()}]. +%% +%% Description: Decodes a ssh file-binary. In the case of know_hosts +%% or auth_keys the binary may include one or more lines of the +%% file. Returns a list of public keys and their attributes, possible +%% attribute values depends on the file type represented by the +%% binary. +%%-------------------------------------------------------------------- +ssh_decode(SshBin, Type) when is_binary(SshBin), + Type == public_key; + Type == rfc4716_public_key; + Type == openssh_public_key; + Type == auth_keys; + Type == known_hosts -> + pubkey_ssh:decode(SshBin, Type). + +%%-------------------------------------------------------------------- +-spec ssh_encode([{public_key(), Attributes::list()}], ssh_file()) -> + binary(). +%% Description: Encodes a list of ssh file entries (public keys and +%% attributes) to a binary. Possible attributes depends on the file +%% type. +%%-------------------------------------------------------------------- +ssh_encode(Entries, Type) when is_list(Entries), + Type == rfc4716_public_key; + Type == openssh_public_key; + Type == auth_keys; + Type == known_hosts -> + pubkey_ssh:encode(Entries, Type). + +%%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- @@ -487,7 +545,6 @@ decrypt_public(CipherText, N,E, Options) -> crypto:rsa_public_decrypt(CipherText,[crypto:mpint(E), crypto:mpint(N)], Padding). - path_validation([], #path_validation_state{working_public_key_algorithm = Algorithm, working_public_key = @@ -571,11 +628,9 @@ validate(DerCert, #path_validation_state{working_issuer_name = Issuer, pubkey_cert:prepare_for_next_cert(OtpCert, ValidationState). -sized_binary(Binary) when is_binary(Binary) -> +sized_binary(Binary) -> Size = size(Binary), - <<?UINT32(Size), Binary/binary>>; -sized_binary(List) -> - sized_binary(list_to_binary(List)). + <<?UINT32(Size), Binary/binary>>. %%-------------------------------------------------------------------- %%% Deprecated functions |