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This commit is contained in:
Nicholas Ward 2022-11-15 14:46:45 -08:00
parent 772dc5c9e7
commit ebd606621f
2 changed files with 48 additions and 12 deletions
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58
evm/src/cpu/kernel/asm/hash/blake/compression.asm
View File

@ -37,6 +37,25 @@
%add_const(16)
%endmacro
%macro blake_generate_new_hash_value(i)
%blake_hash_value_addr
%add_const($i)
%mload_kernel_general
// stack: h_i, ...
%blake_internal_state_addr
%add_const($i)
%mload_kernel_general
// stack: v_i, h_i, ...
%blake_internal_state_addr
%add_const($i)
%add_const(8)
%mload_kernel_general
// stack: v_(i+8), v_i, h_i, ...
XOR
XOR
// stack: h_i' = v_(i+8) ^ v_i ^ h_i, ...
%endmacro
global blake_compression:
// stack: retdest
%stack () -> (0, 0, 0)
@ -44,10 +63,9 @@ global blake_compression:
%blake_initial_hash_value
// stack: h_0, ..., h_7, cur_block, t_0, t_1, retdest
%blake_hash_value_addr
STOP
// stack: addr, h_0, ..., h_7, cur_block, t_0, t_1, retdest
%rep 8
DUP2
SWAP1
DUP2
%mstore_kernel_general
%increment
@ -97,6 +115,7 @@ compression_loop:
POP
// stack: is_last_block, t_0, t_1, retdest
%mul_const(0xFFFFFFFF)
// stack: invert_if_last_block, t_0, t_1, retdest
%stack (l, t0, t1) -> (t0, t1, l, 0)
// stack: t_0, t_1, invert_if_last_block, 0, retdest
%blake_hash_value_addr
@ -110,6 +129,8 @@ compression_loop:
// stack: addr, val, ...
%increment
%endrep
// stack: addr, h_0, ..., h_7, t_0, t_1, invert_if_last_block, 0, retdest
POP
// stack: h_0, ..., h_7, t_0, t_1, invert_if_last_block, 0, retdest
%blake_internal_state_addr
// stack: start, h_0, ..., h_7, t_0, t_1, invert_if_last_block, 0, retdest
@ -140,8 +161,10 @@ compression_loop:
SWAP1
// stack: i + 1, loc + 1,...
%endrep
// stack: 4, start + 12, t_0, t_1, invert_if_last_block, 0, retdest
// XOR the values (t_0, t_1, invert_if, 0) into the last four IV values.
%rep 4
// stack: i, loc, val, next_val, next_val,...
// stack: i, loc, val, next_val,...
%stack (i, loc, val) -> (i, val, loc, i, loc)
// stack: i, val, loc, i, loc, next_val,...
%blake_iv
@ -158,16 +181,16 @@ compression_loop:
SWAP1
// stack: i + 1, loc + 1, next_val,...
%endrep
// stack: 8, loc + 16
// stack: 8, loc + 16, retdest
POP
POP
// stack: (empty)
// stack: retdest
%blake_internal_state_addr
// stack: start
// stack: start, retdest
PUSH 0
// stack: round=0, start
// stack: round=0, start, retdest
%rep 12
// stack: round, start
// stack: round, start, retdest
%call_blake_g_function(0, 4, 8, 12, 0, 1)
%call_blake_g_function(1, 5, 9, 13, 2, 3)
%call_blake_g_function(2, 6, 10, 14, 4, 5)
@ -176,8 +199,21 @@ compression_loop:
%call_blake_g_function(1, 6, 11, 12, 10, 11)
%call_blake_g_function(2, 7, 8, 13, 12, 13)
%call_blake_g_function(3, 4, 9, 14, 14, 15)
// stack: round, start
// stack: round, start, retdest
%increment
// stack: round + 1, start
// stack: round + 1, start, retdest
%endrep
// stack: 12, start, retdest
POP
POP
// stack: retdest
%blake_generate_new_hash_value(7)
%blake_generate_new_hash_value(6)
%blake_generate_new_hash_value(5)
%blake_generate_new_hash_value(4)
%blake_generate_new_hash_value(3)
%blake_generate_new_hash_value(2)
%blake_generate_new_hash_value(1)
%blake_generate_new_hash_value(0)
// stack: h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', retdest
STOP

2
evm/src/cpu/kernel/tests/hash.rs
View File

@ -34,7 +34,7 @@ fn blake(input: Vec<u8>) -> U256 {
fn make_random_input() -> Vec<u8> {
// Generate a random message, between 0 and 9999 bytes.
let mut rng = thread_rng();
let num_bytes = rng.gen_range(0..100);
let num_bytes = rng.gen_range(0..25);
(0..num_bytes).map(|_| rng.gen()).collect()
}