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fix(web3): normalize Ethereum addresses to lowercase to prevent case-… #2265

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fix(web3): normalize Ethereum addresses to lowercase to prevent case-… #2265

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4 changes: 3 additions & 1 deletion internal/utilities/siwe/parser.go
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,9 @@ func ParseMessage(raw string) (*SIWEMessage, error) {
return nil, ErrInvalidDomain
}

address := strings.TrimSpace(lines[1])
// Normalize Ethereum addresses to lowercase to prevent case-sensitivity issues
// Ethereum addresses are case-insensitive (EIP-55 uses mixed case for checksum)
address := strings.ToLower(strings.TrimSpace(lines[1]))
if !addressPattern.MatchString(address) {
return nil, ErrInvalidAddress
}
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