ECDSA Signature Analysis

R,S,Z Extraction

Extract R, S, Z values from Bitcoin transaction ECDSA signatures. Detect nonce-reuse vulnerabilities and weak signature patterns.

Step 1: Upload Wallet

Drop wallet file here or click to browse

.dat, .backup, .wallet, .json, .txt
Step 2: Transaction Input
Auto-fetches raw transaction from blockchain (requires internet)
— OR —
No internet required — offline analysis
ECDSA Curve
secp256k1
Hash
SHA-256²
Format
DER/Hex

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Step 1: Upload a wallet to discover its transactions, or
enter a TXID / Raw Hex directly below.

R — Nonce Point S — Signature Proof Z — Message Hash