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I need to hash 32 cryptographically random bytes, but later the verification the value with hash must be very fast, so I decided to use SHA256. Is it a security issue if my passwords are 32 cryptographically random bytes? Maybe you know so… Continue reading SHA256 for hashing 32 cryptographicaly random bytes
Ofrece servicios de emisión de certificados para firma electrónica, es una obligación para pago de impuestos.
El usuario común no conoce la tecnología detrás, pero percibe la velocidad de respuesta.
Entonces, cómo elegir el tamaño adecuado… Continue reading Qué longitud de certificado es más seguro y fácil de manejar, 2048, 3072 ó 4096 para usuarios no expertos?
I am working on a project where I want to calculate the first two characters of HSH 256 through Excel using known MD5 as per attached file.
I am setting up a postgres db that will never be used by humans. In fact, I really don’t need to know it myself ever. I assumed that just using a 256bit(64 alphanumeric chars) hash of a unix timestamp IE:
date +%s%3N | sha256sum
A very im… Continue reading Is a sha256 hash of a unix timestamp a strong password
I have seen that for RSA2K the hash function SHA-256 has been used.
Now my question is if I want to use RSA3K, should I change the size of the hash function for example from SHA-256 to SHA-384? Is there a relationship that one needs to con… Continue reading Is there a relationship between the size of RSA key and size of hash function?
As in the image I used the list.txt as password is 1234567890 but its showing No password loaded and is with salt mixed.
JVZtCMIBrbtWd3KFnTn6uN1k6qRNSPjqD5wxNmXKYysLU3Ord3U
After using many APIs, I noticed that most of them offer 2 keys: API Key and Secret Key.
The secret key is used to sign the request body with HASHAGE algorithm, the most used is HMAC SHA256. This technique is used by financial platforms li… Continue reading Why REST APIs that do not use RSA encryption to secure API keys?
Recently I was testing whether I could make 7-Zip archives more bruteforce-resistant. Both someone on Wikipedia and @kelalaka on this website make the following claim:
The 7z format supports encryption with the AES algorithm with a 256-bi… Continue reading Does 7-Zip really run multiple rounds of SHA-256 when key stretching?
Unknown attackers have been exploiting a 0-day attack against the Zimbra e-mail suite. Researchers at Volexity first discovered the attack back in December of last year, detected by their monitoring …read more Continue reading This Week in Security: Zimbra, Lockbit 2, And Hacking NK
I have a SSHA256 hashed password. Below is the plaintext and hashed password for it.
PlainText -p@ssw0rd
Encrypted -{SSHA256}LGkJJV6e7wPDKEr3BKSg0K0XDllewz9tvSNSaslDmIfPFmyuI5blUK/QsTXjvgFKLlMQm1jPC7K7z/KaD4zoHQ==
How can I extract salt f… Continue reading How can I extract salt from encoded base64 Salted SHA 256 hashed password