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implement CipherKeyValue.iv field

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pull/25/head
Pavol Rusnak 9 years ago
parent 551741c67a
commit eaf209d999
4 changed files with 17 additions and 7 deletions
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4
firmware/fsm.c
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@ -445,11 +445,11 @@ void fsm_msgCipherKeyValue(CipherKeyValue *msg)
if (encrypt) {
aes_encrypt_ctx ctx;
aes_encrypt_key256(data, &ctx);
aes_cbc_encrypt(msg->value.bytes, resp->value.bytes, msg->value.size, data + 32, &ctx);
aes_cbc_encrypt(msg->value.bytes, resp->value.bytes, msg->value.size, ((msg->iv.size == 16) ? (msg->iv.bytes) : (data + 32)), &ctx);
} else {
aes_decrypt_ctx ctx;
aes_decrypt_key256(data, &ctx);
aes_cbc_decrypt(msg->value.bytes, resp->value.bytes, msg->value.size, data + 32, &ctx);
aes_cbc_decrypt(msg->value.bytes, resp->value.bytes, msg->value.size, ((msg->iv.size == 16) ? (msg->iv.bytes) : (data + 32)), &ctx);
}
resp->has_value = true;
resp->value.size = msg->value.size;

1
firmware/protob/messages.options
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@ -80,6 +80,7 @@ DecryptedMessage.message max_size:1024
CipherKeyValue.address_n max_count:8
CipherKeyValue.key max_size:256
CipherKeyValue.value max_size:1024
CipherKeyValue.iv max_size:16
CipheredKeyValue.value max_size:1024

3
firmware/protob/messages.pb.c
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@ -251,13 +251,14 @@ const pb_field_t DecryptedMessage_fields[3] = {
PB_LAST_FIELD
};
const pb_field_t CipherKeyValue_fields[7] = {
const pb_field_t CipherKeyValue_fields[8] = {
PB_FIELD2( 1, UINT32 , REPEATED, STATIC , FIRST, CipherKeyValue, address_n, address_n, 0),
PB_FIELD2( 2, STRING , OPTIONAL, STATIC , OTHER, CipherKeyValue, key, address_n, 0),
PB_FIELD2( 3, BYTES , OPTIONAL, STATIC , OTHER, CipherKeyValue, value, key, 0),
PB_FIELD2( 4, BOOL , OPTIONAL, STATIC , OTHER, CipherKeyValue, encrypt, value, 0),
PB_FIELD2( 5, BOOL , OPTIONAL, STATIC , OTHER, CipherKeyValue, ask_on_encrypt, encrypt, 0),
PB_FIELD2( 6, BOOL , OPTIONAL, STATIC , OTHER, CipherKeyValue, ask_on_decrypt, ask_on_encrypt, 0),
PB_FIELD2( 7, BYTES , OPTIONAL, STATIC , OTHER, CipherKeyValue, iv, ask_on_decrypt, 0),
PB_LAST_FIELD
};

16
firmware/protob/messages.pb.h
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@ -154,6 +154,11 @@ typedef struct {
uint8_t bytes[1024];
} CipherKeyValue_value_t;
typedef struct {
size_t size;
uint8_t bytes[16];
} CipherKeyValue_iv_t;
typedef struct _CipherKeyValue {
size_t address_n_count;
uint32_t address_n[8];
@ -167,6 +172,8 @@ typedef struct _CipherKeyValue {
bool ask_on_encrypt;
bool has_ask_on_decrypt;
bool ask_on_decrypt;
bool has_iv;
CipherKeyValue_iv_t iv;
} CipherKeyValue;
typedef struct {
@ -673,7 +680,7 @@ extern const char SimpleSignTx_coin_name_default[17];
#define EncryptedMessage_init_default {false, {0, {0}}, false, {0, {0}}, false, {0, {0}}}
#define DecryptMessage_init_default {0, {0, 0, 0, 0, 0, 0, 0, 0}, false, {0, {0}}, false, {0, {0}}, false, {0, {0}}}
#define DecryptedMessage_init_default {false, {0, {0}}, false, ""}
#define CipherKeyValue_init_default {0, {0, 0, 0, 0, 0, 0, 0, 0}, false, "", false, {0, {0}}, false, 0, false, 0, false, 0}
#define CipherKeyValue_init_default {0, {0, 0, 0, 0, 0, 0, 0, 0}, false, "", false, {0, {0}}, false, 0, false, 0, false, 0, false, {0, {0}}}
#define CipheredKeyValue_init_default {false, {0, {0}}}
#define EstimateTxSize_init_default {0, 0, false, "Bitcoin"}
#define TxSize_init_default {false, 0}
@ -727,7 +734,7 @@ extern const char SimpleSignTx_coin_name_default[17];
#define EncryptedMessage_init_zero {false, {0, {0}}, false, {0, {0}}, false, {0, {0}}}
#define DecryptMessage_init_zero {0, {0, 0, 0, 0, 0, 0, 0, 0}, false, {0, {0}}, false, {0, {0}}, false, {0, {0}}}
#define DecryptedMessage_init_zero {false, {0, {0}}, false, ""}
#define CipherKeyValue_init_zero {0, {0, 0, 0, 0, 0, 0, 0, 0}, false, "", false, {0, {0}}, false, 0, false, 0, false, 0}
#define CipherKeyValue_init_zero {0, {0, 0, 0, 0, 0, 0, 0, 0}, false, "", false, {0, {0}}, false, 0, false, 0, false, 0, false, {0, {0}}}
#define CipheredKeyValue_init_zero {false, {0, {0}}}
#define EstimateTxSize_init_zero {0, 0, false, ""}
#define TxSize_init_zero {false, 0}
@ -760,6 +767,7 @@ extern const char SimpleSignTx_coin_name_default[17];
#define CipherKeyValue_encrypt_tag 4
#define CipherKeyValue_ask_on_encrypt_tag 5
#define CipherKeyValue_ask_on_decrypt_tag 6
#define CipherKeyValue_iv_tag 7
#define CipheredKeyValue_value_tag 1
#define DebugLinkDecision_yes_no_tag 1
#define DebugLinkLog_level_tag 1
@ -917,7 +925,7 @@ extern const pb_field_t EncryptMessage_fields[6];
extern const pb_field_t EncryptedMessage_fields[4];
extern const pb_field_t DecryptMessage_fields[5];
extern const pb_field_t DecryptedMessage_fields[3];
extern const pb_field_t CipherKeyValue_fields[7];
extern const pb_field_t CipherKeyValue_fields[8];
extern const pb_field_t CipheredKeyValue_fields[2];
extern const pb_field_t EstimateTxSize_fields[4];
extern const pb_field_t TxSize_fields[2];
@ -973,7 +981,7 @@ extern const pb_field_t DebugLinkLog_fields[4];
#define EncryptedMessage_size 1168
#define DecryptMessage_size 1216
#define DecryptedMessage_size 1065
#define CipherKeyValue_size 1340
#define CipherKeyValue_size 1358
#define CipheredKeyValue_size 1027
#define EstimateTxSize_size 31
#define TxSize_size 6

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