SPL services: Difference between revisions

Line 33:

| 7 || [[#GetRandomBytes]] || Uses [[SMC#GetRandomBytes|GetRandomBytes SMC]].

|-

| 9 || [[#~~DecryptImportPrivkForExpMod0~~]] || Speculative name. Wrapper for [[SMC#LoadRsaPublicKey|LoadRsaPublicKey SMC]].

| 9 || [[#DecryptImportPrivkForRsaOaep]] || Speculative name. Wrapper for [[SMC#LoadRsaPublicKey|LoadRsaPublicKey SMC]].

|-

| 10 || [[#~~ExpMod0~~]] || Speculative name. ~~Wrapper for~~ [[SMC#PublicRsa|PublicRsa SMC]].

| 10 || [[#DecryptRsaOaep]] || Speculative name. Uses [[SMC#PublicRsa|PublicRsa SMC]].

|-

| 11 || [[#IsDevelopment]] ||

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Any other '''ConfigItem''', besides 13, can't be set.

== ~~DecryptImportPrivkForExpMod0~~ ==

== DecryptImportPrivkForRsaOaep ==

Takes one type-9 (X descriptor) buffer ('''enc_privk_in_buf'''), a 16-byte KEK ('''key_x'''), a 16-byte key ('''key_y''') and a u32 ('''version''').

'''version''' is 0 for normal keys or 1 for extended keys.

Line 193:

Decrypts '''enc_privk_in_buf''' with a key generated from '''key_x''' and '''key_y''' and imports it for later usage.

== ~~ExpMod0~~ ==

== DecryptRsaOaep ==

Takes one type-10 (C descriptor) buffer ('''data_out_buf''') and 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''~~param0_in_buf~~''' and '''~~param1_in_buf~~''').

Takes one type-10 (C descriptor) buffer ('''data_out_buf''') and 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''mod_in_buf''' and '''label_hash_in_buf''').

Decrypts '''data_in_buf''' into '''data_out_buf''' using the private key imported with [[#~~DecryptImportPrivkForExpMod0~~]] and the supplied ~~buffers~~ '''~~param0_in_buf~~''' ~~and~~ '''~~param1_in_buf~~'''.

Decrypts '''data_in_buf''' into '''data_out_buf''' using the private key imported with [[#DecryptImportPrivkForRsaOaep]] and the supplied '''mod_in_buf'''. Afterwards, verifies RSA-OAEP encoding using '''label_hash_in_buf'''.

Returns ~~and unknown~~ u32.

Returns an u32 ('''dec_data_size''').

== IsDevelopment ==

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'''KeyGeneration''' ranges from 0 to 2.

Returns a scrambled ~~(unsealed?)~~ key ('''key_a''').

Returns a scrambled key ('''key_a''').

== DecryptPrivk ==

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== ExpMod1 ==

Takes 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''~~param0_in_buf~~''' and '''~~param1_in_buf~~''').

Takes 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''mod_in_buf''' and '''param0_in_buf''').

Decrypts '''data_in_buf''' using the private key imported with [[#DecryptImportPrivkForExpMod1]] and the supplied ~~buffers~~ '''~~param0_in_buf~~''' and '''~~param1_in_buf~~'''.

Decrypts '''data_in_buf''' using the private key imported with [[#DecryptImportPrivkForExpMod1]] and the supplied '''mod_in_buf''' and '''param0_in_buf'''.

Generates and returns a 16-byte key ('''key_z''').

@@ Line 33: / Line 33: @@
 | 7 || [[#GetRandomBytes]] || Uses [[SMC#GetRandomBytes|GetRandomBytes SMC]].
 |-
-| 9 || [[#DecryptImportPrivkForExpMod0]] || Speculative name. Wrapper for [[SMC#LoadRsaPublicKey|LoadRsaPublicKey SMC]].
+| 9 || [[#DecryptImportPrivkForRsaOaep]] || Speculative name. Wrapper for [[SMC#LoadRsaPublicKey|LoadRsaPublicKey SMC]].
 |-
-| 10 || [[#ExpMod0]] || Speculative name. Wrapper for [[SMC#PublicRsa|PublicRsa SMC]].
+| 10 || [[#DecryptRsaOaep]] || Speculative name. Uses [[SMC#PublicRsa|PublicRsa SMC]].
 |-
 | 11 || [[#IsDevelopment]] ||
@@ Line 187: / Line 187: @@
 Any other '''ConfigItem''', besides 13, can't be set.
-== DecryptImportPrivkForExpMod0 ==
+== DecryptImportPrivkForRsaOaep ==
 Takes one type-9 (X descriptor) buffer ('''enc_privk_in_buf'''), a 16-byte KEK ('''key_x'''), a 16-byte key ('''key_y''') and a u32 ('''version''').
 '''version''' is 0 for normal keys or 1 for extended keys.
@@ Line 193: / Line 193: @@
 Decrypts '''enc_privk_in_buf''' with a key generated from '''key_x''' and '''key_y''' and imports it for later usage.
-== ExpMod0 ==
+== DecryptRsaOaep ==
-Takes one type-10 (C descriptor) buffer ('''data_out_buf''') and 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''param0_in_buf''' and '''param1_in_buf''').
+Takes one type-10 (C descriptor) buffer ('''data_out_buf''') and 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''mod_in_buf''' and '''label_hash_in_buf''').
-Decrypts '''data_in_buf''' into '''data_out_buf''' using the private key imported with [[#DecryptImportPrivkForExpMod0]] and the supplied buffers '''param0_in_buf''' and '''param1_in_buf'''.
+Decrypts '''data_in_buf''' into '''data_out_buf''' using the private key imported with [[#DecryptImportPrivkForRsaOaep]] and the supplied '''mod_in_buf'''. Afterwards, verifies RSA-OAEP encoding using '''label_hash_in_buf'''.
-Returns and unknown u32.
+Returns an u32 ('''dec_data_size''').
 == IsDevelopment ==
@@ Line 211: / Line 211: @@
 '''KeyGeneration''' ranges from 0 to 2.
-Returns a scrambled (unsealed?) key ('''key_a''').
+Returns a scrambled key ('''key_a''').
 == DecryptPrivk ==
@@ Line 250: / Line 250: @@
 == ExpMod1 ==
-Takes 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''param0_in_buf''' and '''param1_in_buf''').
+Takes 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''mod_in_buf''' and '''param0_in_buf''').
-Decrypts '''data_in_buf''' using the private key imported with [[#DecryptImportPrivkForExpMod1]] and the supplied buffers '''param0_in_buf''' and '''param1_in_buf'''.
+Decrypts '''data_in_buf''' using the private key imported with [[#DecryptImportPrivkForExpMod1]] and the supplied '''mod_in_buf''' and '''param0_in_buf'''.
 Generates and returns a 16-byte key ('''key_z''').