Generation of Bitcoin addresses with private keys RSA
In the world of cryptocurrencies, safe communication and transactions are crucial. Two popular methods for generating addresses in digital currencies, such as Bitcoin, use public key cryptography (PKC) and Cryptography (ECC) elliptical sluts. One of these methods is based on RSA private keys, which can be little difficult to understand for those who are not familiar with cryptographic concepts.
RSRS keys private
A private key RSA is a few large primary numbers (P and Q) used to sign digital signatures. Is used to verify the authenticity of safe messages or transactions. The public part of the key is publicly shared, while the private party remains confidential.
To generate a Bitcoin address using a private key:
- Choose two random primary numbers : Select two large primary numbers P and Q.
- Calculate the N module: Calculate the product P and Q to get the N module.
- Generate public and private keys
: Use the public part (s) to generate a public key and use the private part (D) as a secret key to generate Bitcoin address.
Generation of addresses
To generate a Bitcoin address using private RSA keys, follow these steps:
- Use the private key to sign a message
: Sign a message with your private key.
- Calculate the hash of the signed message : Calculate the Hash Sha -256 of the company and the message (for example, using the
echo -nBash command).
- Generate a Bitcoin address from Hash : The resulting hash is a 64 -character chain that starts with “0x”. This chain can be used as a bitcoin address.
Example
Suppose you have a private RSA and Usala private key to sign the message “Hello, world!”. I would calculate Hash Sha-256 of this company and the message using a tool like “Sha256sum” in Bash. The resulting hash is:
B5a1cc7d45c4e5cd6ec9f5e8ccfc2eb76f3bf4ae2be6ab16db0dfb4ef9d86ed
Then you can generate a bitcoin address in this hash using the following steps:
- Calculate the hexadecimal representation : Convert the hexadecimal chain into a chain of 64 -characters.
- Remove the prefix “0x” : Remove the first two characters from the chain (for example,
0x).
- Use the resulting chain as a bitcoin address
Why RSA addresses cannot be suitable for bitcoin
While RSA addresses can be used to generate digital signatures and create safe communication, it may not be suitable for use with bitcoin due to security issues:
* Unverified authenticity : Because RSA keys are based on public key cryptography, any message or transaction using a RSA key to sign a message cannot be checked in real time without the appropriate private key.
* key commitment : If your private key is compromised (for example, by a phishing attack), it can lead to unauthorized access to your Bitcoin wallet.
On the contrary, the direction of cryptography of the elliptical curve (ECC) is safer, because they use digital companies based on the cryptography of the elliptical curve, which offers stronger security features. The ECC addresses also admit transactions without the need for public keys between the parties.
Conclusion
While RSA private keys can be used to generate bitcoin addresses, it is essential to understand the security and use issues that are the basis. The RSA addresses may not be suitable for use with bitcoin due to issues related to authentication and key commitment. However, these remain a viable option for other digital currencies that do not require a safe check. As developers continue to explore alternative cryptographic methods, we can expect new solutions to appear.