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Fix typos in documentation for Secp256k1 native program #33796

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Oct 23, 2023
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Fix typos in documentation for Secp256k1 native program #33796

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12 changes: 6 additions & 6 deletions docs/src/developing/runtime-facilities/programs.md
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Original file line number Diff line number Diff line change
Expand Up @@ -127,13 +127,13 @@ a count of the following struct serialized in the instruction data:

```
struct Secp256k1SignatureOffsets {
secp_signature_key_offset: u16, // offset to [signature,recovery_id,etherum_address] of 64+1+20 bytes
secp_signature_instruction_index: u8, // instruction index to find data
secp_pubkey_offset: u16, // offset to [signature,recovery_id] of 64+1 bytes
secp_signature_instruction_index: u8, // instruction index to find data
secp_signature_offset: u16, // offset to [signature,recovery_id] of 64+1 bytes
secp_signature_instruction_index: u8, // instruction index to find signature
secp_pubkey_offset: u16, // offset to ethereum_address pubkey of 20 bytes
secp_pubkey_instruction_index: u8, // instruction index to find pubkey
secp_message_data_offset: u16, // offset to start of message data
secp_message_data_size: u16, // size of message data
secp_message_instruction_index: u8, // index of instruction data to get message data
secp_message_instruction_index: u8, // instruction index to find message data
}
```

Expand All @@ -146,7 +146,7 @@ process_instruction() {
instructions = &transaction.message().instructions
signature = instructions[secp_signature_instruction_index].data[secp_signature_offset..secp_signature_offset + 64]
recovery_id = instructions[secp_signature_instruction_index].data[secp_signature_offset + 64]
ref_eth_pubkey = instructions[secp_pubkey_instruction_index].data[secp_pubkey_offset..secp_pubkey_offset + 32]
ref_eth_pubkey = instructions[secp_pubkey_instruction_index].data[secp_pubkey_offset..secp_pubkey_offset + 20]
message_hash = keccak256(instructions[secp_message_instruction_index].data[secp_message_data_offset..secp_message_data_offset + secp_message_data_size])
pubkey = ecrecover(signature, recovery_id, message_hash)
eth_pubkey = keccak256(pubkey[1..])[12..]
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