rixxc/x25519_agent
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Implemented keygen and x25519 for agent

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This commit is contained in:
Aaron Kaiser
2024-04-23 10:33:59 +02:00
parent ae00fd66ec
commit 7038f65ac6
1 changed files with 29 additions and 7 deletions
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36
src/agent.jazz
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@@ -1,5 +1,14 @@
from Jade require "crypto_scalarmult/curve25519/amd64/mulx/scalarmult.jazz" from Jade require "crypto_scalarmult/curve25519/amd64/mulx/scalarmult.jazz"
inline fn extract_nth_ptr(reg u64 sync_mem shared_mem, inline int i) -> reg u64 {
reg u64 p;
p = (u64)[sync_mem + (16 + i * 8)];
p += shared_mem;
return p;
}
inline fn extract_ipc_id(reg u64 sync_mem) -> reg u64 { inline fn extract_ipc_id(reg u64 sync_mem) -> reg u64 {
reg u64 id; reg u64 id;
@@ -8,7 +17,7 @@ inline fn extract_ipc_id(reg u64 sync_mem) -> reg u64 {
return id; return id;
} }
inline fn generate_key(reg u64 shared_mem sync_mem private_mem key_id) -> reg u64 { inline fn generate_key(reg u64 shared_mem sync_mem private_mem, stack u64 key_id) -> stack u64 {
inline int i; inline int i;
stack u8[32] key; stack u8[32] key;
reg u64 addr idptr pkptr; reg u64 addr idptr pkptr;
@@ -35,18 +44,28 @@ inline fn generate_key(reg u64 shared_mem sync_mem private_mem key_id) -> reg u6
pkptr = (u64)[sync_mem + 24]; pkptr = (u64)[sync_mem + 24];
pkptr += shared_mem; pkptr += shared_mem;
() = #spill(key_id);
jade_scalarmult_curve25519_amd64_mulx_base(pkptr, private_mem); jade_scalarmult_curve25519_amd64_mulx_base(pkptr, private_mem);
() = #unspill(key_id);
return key_id; return key_id;
} }
inline fn x25519(reg u64 shared_mem sync_mem private_mem) {
reg u64 outptr idptr pkptr keyptr;
stack u64 keyid;
outptr = extract_nth_ptr(sync_mem, shared_mem, 0);
idptr = extract_nth_ptr(sync_mem, shared_mem, 1);
pkptr = extract_nth_ptr(sync_mem, shared_mem, 2);
keyid = (u64)[idptr];
keyptr = private_mem + keyid;
jade_scalarmult_curve25519_amd64_mulx(outptr, keyptr, pkptr);
}
export fn agent_start(reg u64 shared_mem sync_mem private_mem) { export fn agent_start(reg u64 shared_mem sync_mem private_mem) {
stack u8[8] unused; stack u8[8] unused;
reg u64 key_id; stack u64 key_id;
key_id = 0; key_id = 0;
@@ -60,11 +79,14 @@ export fn agent_start(reg u64 shared_mem sync_mem private_mem) {
() = #unspill(shared_mem, sync_mem, private_mem); () = #unspill(shared_mem, sync_mem, private_mem);
reg u64 id; reg u64 id;
id = extract_ipc_id(sync_mem); id = extract_ipc_id(sync_mem);
if (id == 0) { if (id == 0) {
key_id = generate_key(shared_mem, sync_mem, private_mem, key_id); key_id = generate_key(shared_mem, sync_mem, private_mem, key_id);
} else {
if (id == 1) {
x25519(shared_mem, sync_mem, private_mem);
}
} }
() = #unspill(sync_mem); () = #unspill(sync_mem);