Samsung CERT File Edit or Generate as per Our IMEI When we Open A Samsung Phone CERT File in Notepad - We can See The Text Below its Some Encrypted Code - And Some Hashes Can We Decrypt it ? or can We Create Our Own CERT Files by using Any Generator or AT Commands ...? Can Anyone Tell me Which Type Of Encryption Used in CERT Files ? Code: ;BST Samsung CERT file |
before i have made thread, nobody replied. if looks below part Quote:
for verifying using Pubkey,before verfy the imei pubkey will verify first. if not wrong. but must know what algorithm used. if somebody know.. which part inside the firmware will check the certificate, make easier to analyze. |
ImeiSign , IMEI + SERIAL + CPU + BASEBAND |
no you can,t create cert , or not change with notepad |
What is The Secret Behind CERT Files ? |
There is no any secret, it's simple cryptography, cert files are signed with PRIVATE keys, which only FACTORY HAVE. You or anyone else don't have them, and CAN NOT create cert files without it. Phone hardware check cert via public key decrypting, and if matches, security is ok, imei ok, network ok, all ok. b.r. Alex |
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Sent from my SM-N920W8 using Tapatalk |
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after that BB5 rpl was generating impossible. if so some team work hard they can break Samsung cert security |
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Samsung crt is RSA thing, maybe after 10 years, who knows |
Imei Cert Is RSA 512 in theory if it is possible to generate the certificates. PrivKey, it generates pubkey For pubkey decrypts the message PrivKey generate the PubKey Internet HTTPS: User: MSG + PubKey = MSGencrypt Server: MSGencrypt + PrivKey = MSG Samsung Mobile : Imei = ImeiSing + PubKey Samsung: ImeiSing = Imei + PrivKey It looks like can be used to encrypt both to decrypt the PrivKey, but only PrivKey Encrypts and decrypts the message and pubkey if encrypts, decrypts and not vice versa. |
Based on firmware, there is Boot,System,recovery, etc.. if somebody know. where is block of memory will keep the certificate on phone ? i thinks the certificate will be verify first when boot up. |
Absolutely wrong! Imei cert is rsa 2048. And if we see in theory RSA key components: 1. Full pack key is: - PRIVATE EXPONENT - named D - PUBLIC EXPONENT - named E - MODULUS - named N this is also know as PRIVATE KEY. 2. PUBLIC KEY: - PUBLIC EXPONENT - E - MODULUS - N (same as private) In RSA you can ENCRYPT also with PUBLIC KEY but this message is possible to be decrypted only with PRIVATE KEY. If ENCRYPT with PRIVATE KEY this msg can be decrypted from PUBLIC and from PRIVATE KEY. Quote:
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a Super PC ? i can afford it. a Super Net? already Have it. maybe it needs more digging around. i can't believing there is no one can crack this code, the makers was humans and i bet the crackers will be. |
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