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-rw-r--r--lib/ssh/src/ssh_rsa.erl233
1 files changed, 20 insertions, 213 deletions
diff --git a/lib/ssh/src/ssh_rsa.erl b/lib/ssh/src/ssh_rsa.erl
index 77c411b09f..03c55319b7 100644
--- a/lib/ssh/src/ssh_rsa.erl
+++ b/lib/ssh/src/ssh_rsa.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2005-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2012. 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
@@ -23,40 +23,23 @@
-module(ssh_rsa).
+-include_lib("public_key/include/public_key.hrl").
+
-export([verify/3, sign/2]).
-export([alg_name/0]).
-include("ssh.hrl").
--include("PKCS-1.hrl").
-
-define(MGF(Seed,Len), mgf1((Seed),(Len))).
-define(HASH(X), crypto:sha((X))).
-define(HLen, 20).
-%% start() ->
-%% crypto:start().
-
-%% sign_file(File) ->
-%% start(),
-%% {ok,Bin} = file:read_file(File),
-%% {ok,Key} = ssh_file:private_host_rsa_key(user),
-%% sign(Key, Bin).
-
-%% verify_file(File, Sig) ->
-%% start(),
-%% {ok,Bin} = file:read_file(File),
-%% {ok,Key} = ssh_file:public_host_rsa_key(user),
-%% verify(Key, Bin, Sig).
-
sign(Private,Mb) ->
rsassa_pkcs1_v1_5_sign(Private,Mb).
verify(Public,Mb,Sb) ->
rsassa_pkcs1_v1_5_verify(Public,Mb,Sb).
-
-
%% Integer to octet string
i2osp(X, XLen) ->
ssh_bits:i2bin(X, XLen).
@@ -65,125 +48,23 @@ i2osp(X, XLen) ->
os2ip(X) ->
ssh_bits:bin2i(X).
-%% decrypt1, M = message representative
-%% rsaep(#ssh_key { public={N,E}}, M) ->
-%% ?ssh_assert(M >= 0 andalso M =< N-1, out_of_range),
-%% ssh_math:ipow(M, E, N).
-
-%% encrypt1, C = cipher representative
-%% rsadp(#ssh_key { public={N,_}, private={_,D}}, C) ->
-%% ?ssh_assert(C >= 0 andalso C =< N-1, out_of_range),
-%% ssh_math:ipow(C, D, N).
-
%% sign1, M = message representative
-rsasp1(#ssh_key { public={N,_}, private={_,D}}, M) ->
+rsasp1(#'RSAPrivateKey'{modulus = N, privateExponent = D}, M) ->
?ssh_assert((M >= 0 andalso M =< N-1), out_of_range),
ssh_math:ipow(M, D, N).
%% verify1, S =signature representative
-rsavp1(#ssh_key { public={N,E}}, S) ->
+rsavp1(#'RSAPublicKey'{publicExponent = E, modulus = N}, S) ->
?ssh_assert(S >= 0 andalso S =< N-1, out_of_range),
ssh_math:ipow(S, E, N).
-%% M messaage
-%% rsaes_oaep_encrypt(Public, M) ->
-%% rsaes_oaep_encrypt(Public, M, <<>>).
-
-%% rsaes_oaep_encrypt(Public=#ssh_key { public={N,_E}}, M, L) ->
-%% ?ssh_assert(size(L) =< 16#ffffffffffffffff, label_to_long),
-%% K = (ssh_bits:isize(N)+7) div 8,
-%% MLen = size(M),
-%% %% LLen = size(L),
-%% ?ssh_assert(MLen =< K - 2*?HLen - 2, message_to_long),
-%% LHash = ?HASH(L),
-%% PS = ssh_bits:fill_bits(K - MLen - 2*?HLen - 2, 0),
-%% DB = <<LHash/binary, PS/binary, 16#01, M/binary>>,
-%% Seed = ssh_bits:random(?HLen),
-%% DbMask = ?MGF(Seed, K - ?HLen - 1),
-%% MaskedDB = ssh_bits:xor_bits(DB, DbMask),
-%% SeedMask = ?MGF(MaskedDB, ?HLen),
-%% MaskedSeed = ssh_bits:xor_bits(Seed, SeedMask),
-%% EM = <<16#00, MaskedSeed/binary, MaskedDB/binary>>,
-%% Mc = os2ip(EM),
-%% C = rsaep(Public, Mc),
-%% i2osp(C, K).
-
-%% rsaes_oaep_decrypt(Key, C) ->
-%% rsaes_oaep_decrypt(Key, C, <<>>).
-
-%% rsaes_oaep_decrypt(Private=#ssh_key { public={N,_},private={_,_}},Cb,L) ->
-%% ?ssh_assert(size(L) =< 16#ffffffffffffffff, label_to_long),
-%% K = (ssh_bits:isize(N)+7) div 8,
-%% ?ssh_assert(K == 2*?HLen + 2, decryption_error),
-%% C = os2ip(Cb),
-%% M = rsadp(Private, C),
-%% EM = i2osp(M, K),
-%% LHash = ?HASH(L),
-%% MLen = K - ?HLen -1,
-%% case EM of
-%% <<16#00, MaskedSeed:?HLen/binary, MaskedDB:MLen>> ->
-%% SeedMask = ?MGF(MaskedDB, ?HLen),
-%% Seed = ssh_bits:xor_bits(MaskedSeed, SeedMask),
-%% DbMask = ?MGF(Seed, K - ?HLen - 1),
-%% DB = ssh_bits:xor_bits(MaskedDB, DbMask),
-%% PSLen = K - MLen - 2*?HLen - 2,
-%% case DB of
-%% <<LHash:?HLen, _PS:PSLen/binary, 16#01, M/binary>> ->
-%% M;
-%% _ ->
-%% exit(decryption_error)
-%% end;
-%% _ ->
-%% exit(decryption_error)
-%% end.
-
-
-%% rsaes_pkcs1_v1_5_encrypt(Public=#ssh_key { public={N,_}}, M) ->
-%% K = (ssh_bits:isize(N)+7) div 8,
-%% MLen = size(M),
-%% ?ssh_assert(MLen =< K - 11, message_to_long),
-%% PS = ssh_bits:random(K - MLen - 3),
-%% EM = <<16#00,16#02,PS/binary,16#00,M/binary>>,
-%% Mc = os2ip(EM),
-%% C = rsaep(Public, Mc),
-%% i2osp(C, K).
-
-
-%% rsaes_pkcs1_v1_5_decrypt(Private=#ssh_key { public={N,_},private={_,_}},
-%% Cb) ->
-%% K = (ssh_bits:isize(N)+7) div 8,
-%% CLen = size(Cb),
-%% ?ssh_assert(CLen == K andalso K >= 11, decryption_error),
-%% C = os2ip(Cb),
-%% M = rsadp(Private, C),
-%% EM = i2osp(M, K),
-%% PSLen = K - CLen - 3,
-%% case EM of
-%% <<16#00, 16#02, _PS:PSLen/binary, 16#00, M>> ->
-%% M;
-%% _ ->
-%% exit(decryption_error)
-%% end.
-
-%% rsassa_pss_sign(Private=#ssh_key { public={N,_},private={_,_}},Mb) ->
-%% ModBits = ssh_bits:isize(N),
-%% K = (ModBits+7) div 8,
-%% EM = emsa_pss_encode(Mb, ModBits - 1),
-%% M = os2ip(EM),
-%% S = rsasp1(Private, M),
-%% i2osp(S, K).
-
-%% rsassa_pss_verify(Public=#ssh_key { public={N,_E}},Mb,Sb) ->
-%% ModBits = ssh_bits:isize(N),
-%% K = (ModBits+7) div 8,
-%% ?ssh_assert(size(Sb) == K, invalid_signature),
-%% S = os2ip(Sb),
-%% M = rsavp1(Public,S),
-%% EMLen = (ModBits-1+7) div 8,
-%% EM = i2osp(M, EMLen),
-%% emsa_pss_verify(Mb, EM, ModBits-1).
-
+rsassa_pkcs1_v1_5_sign(#'RSAPrivateKey'{modulus = N} = Private, Mb) ->
+ K = (ssh_bits:isize(N)+7) div 8,
+ EM = emsa_pkcs1_v1_5_encode(Mb, K),
+ M = os2ip(EM),
+ S = rsasp1(Private, M),
+ i2osp(S, K);
rsassa_pkcs1_v1_5_sign(Private=#ssh_key { public={N,_},private={_,_D}},Mb) ->
K = (ssh_bits:isize(N)+7) div 8,
@@ -192,7 +73,7 @@ rsassa_pkcs1_v1_5_sign(Private=#ssh_key { public={N,_},private={_,_D}},Mb) ->
S = rsasp1(Private, M),
i2osp(S, K).
-rsassa_pkcs1_v1_5_verify(Public=#ssh_key { public={N,_E}}, Mb, Sb) ->
+rsassa_pkcs1_v1_5_verify(#'RSAPublicKey'{modulus = N} = Public, Mb, Sb) ->
K = (ssh_bits:isize(N)+7) div 8,
?ssh_assert(size(Sb) == K, invalid_signature),
S = os2ip(Sb),
@@ -200,9 +81,9 @@ rsassa_pkcs1_v1_5_verify(Public=#ssh_key { public={N,_E}}, Mb, Sb) ->
EM = i2osp(M, K),
%?dbg(true, "verify K=~p S=~w ~n#M=~w~n#EM=~w~n", [K, S, M, EM]),
case emsa_pkcs1_v1_5_encode(Mb, K) of
- EM -> ok;
- _S ->
- {error, invalid_signature}
+ EM -> true;
+ _S -> false
+ %%{error, invalid_signature}
end.
@@ -211,87 +92,13 @@ emsa_pkcs1_v1_5_encode(M, EMLen) ->
%% Must use speical xxNull types here!
Alg = #'AlgorithmNull' { algorithm = ?'id-sha1',
parameters = <<>> },
- {ok,TCode} = 'PKCS-1':encode('DigestInfoNull',
- #'DigestInfoNull'{ digestAlgorithm = Alg,
- digest = H }),
- T = list_to_binary(TCode),
- TLen = size(T),
+ TCode = public_key:der_encode('DigestInfoNull',
+ #'DigestInfoNull'{ digestAlgorithm = Alg,
+ digest = H }),
+ TLen = size(TCode),
?ssh_assert(EMLen >= TLen + 11, message_to_short),
PS = ssh_bits:fill_bits(EMLen - TLen - 3, 16#ff),
- <<16#00, 16#01, PS/binary, 16#00, T/binary>>.
-
-
-%% emsa_pss_encode(M, EMBits) ->
-%% emsa_pss_encode(M, EMBits, 0).
-
-%% emsa_pss_encode(M, EMBits, SLen) ->
-%% ?ssh_assert(size(M) =< 16#ffffffffffffffff, message_to_long),
-%% EMLen = (EMBits + 7) div 8,
-%% MHash = ?HASH(M),
-%% ?ssh_assert(EMLen >= ?HLen + SLen + 2, encoding_error),
-%% Salt = ssh_bits:random(SLen),
-%% M1 = [16#00,16#00,16#00,16#00,16#00,16#00,16#00,16#00,
-%% MHash, Salt],
-%% H = ?HASH(M1),
-%% PS = ssh_bits:fill_bits(EMLen-SLen-?HLen-2, 0),
-%% DB = <<PS/binary, 16#01, Salt/binary>>,
-%% DbMask = ?MGF(H, EMLen - ?HLen -1),
-%% MaskedDB = ssh_bits:xor_bits(DB, DbMask),
-%% ZLen = 8*EMLen - EMBits,
-%% NZLen = (8 - (ZLen rem 8)) rem 8,
-%% <<_:ZLen, NZ:NZLen, MaskedDB1/binary>> = MaskedDB,
-%% MaskedDB2 = <<0:ZLen, NZ:NZLen, MaskedDB1/binary>>,
-%% <<MaskedDB2/binary, H/binary, 16#BC>>.
-
-
-%% emsa_pss_verify(M, EM, EMBits) ->
-%% emsa_pss_verify(M, EM, EMBits, 0).
-
-%% emsa_pss_verify(M, EM, EMBits, SLen) ->
-%% ?ssh_assert(size(M) =< 16#ffffffffffffffff, message_to_long),
-%% EMLen = (EMBits + 7) div 8,
-%% MHash = ?HASH(M),
-%% ?ssh_assert(EMLen >= ?HLen + SLen + 2, inconsistent),
-%% MaskLen = (EMLen - ?HLen - 1)-1,
-%% ZLen = 8*EMLen - EMBits,
-%% NZLen = (8 - (ZLen rem 8)) rem 8,
-%% case EM of
-%% <<0:ZLen,Nz:NZLen,MaskedDB1:MaskLen/binary, H:?HLen/binary, 16#BC>> ->
-%% MaskedDB = <<0:ZLen,Nz:NZLen,MaskedDB1/binary>>,
-%% DbMask = ?MGF(H, EMLen - ?HLen - 1),
-%% DB = ssh_bits:xor_bits(MaskedDB, DbMask),
-%% PSLen1 = (EMLen - SLen - ?HLen - 2) - 1,
-%% PS = ssh_bits:fill_bits(PSLen1, 0),
-%% case DB of
-%% <<_:ZLen,0:NZLen,PS:PSLen1/binary,16#01,Salt:SLen/binary>> ->
-%% M1 = [16#00,16#00,16#00,16#00,16#00,16#00,16#00,16#00,
-%% MHash, Salt],
-%% case ?HASH(M1) of
-%% H -> ok;
-%% _ -> exit(inconsistent)
-%% end;
-%% _ ->
-%% exit(inconsistent)
-%% end;
-%% _ ->
-%% exit(inconsistent)
-%% end.
-
-
-
-%% Mask generating function MGF1
-%% mgf1(MGFSeed, MaskLen) ->
-%% T = mgf1_loop(0, ((MaskLen + ?HLen -1) div ?HLen) - 1, MGFSeed, ""),
-%% <<R:MaskLen/binary, _/binary>> = T,
-%% R.
-
-%% mgf1_loop(Counter, N, _, T) when Counter > N ->
-%% list_to_binary(T);
-%% mgf1_loop(Counter, N, MGFSeed, T) ->
-%% C = i2osp(Counter, 4),
-%% mgf1_loop(Counter+1, N, MGFSeed, [T, ?HASH([MGFSeed, C])]).
-
-
+ <<16#00, 16#01, PS/binary, 16#00, TCode/binary>>.
alg_name() ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 04:44:58 +0000