secret-key | 易学教程

For RSA, how do i calculate the secret exponent?

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问题 For RSA, how do i calculate the secret exponent? Given p and q the two primes, and phi=(p-1)(q-1), and the public exponent (0x10001), how do i get the secret exponent 'd' ? I've read that i have to do: d = e -1 mod phi using modular inversion and the euclidean equation but i cannot understand how the above formula maps to either the a -1 ≡ x mod m formula on the modular inversion wiki page, or how it maps to the euclidean GCD equation. Can someone help please, cheers 回答1: You can use the

In iOS, how can I store a secret “key” that will allow me to communicate with my server?

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I want to store a secret key ("abc123") that I will use in the header of my REST API requests. My server will check this secret key. If it matches "abc123", then allow the request to be made. I'm thinking about a simple solution like: let secret = "abc123" But are there going to be any downfalls to this? Rob Napier Crazy as it sounds, this is probably the best solution. Everything else is more complicated, but not much more secure. Any fancy obfuscation techniques you use are just going to be reverse engineered almost as quickly as they'll find this key. But this static key solution, while

Secure keys in iOS App scenario, is it safe?

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问题 I am trying to hide 2 secrets that I am using in one of my apps. As I understand the keychain is a good place but I can not add them before I submit the app. I thought about this scenario - Pre seed the secrets in my app's CoreData Database by spreading them in other entities to obscure them. (I already have a seed DB in that app). As the app launches for the first time, generate and move the keys to the keychain. Delete the records from CoreData. Is that safe or can the hacker see this

Best practices for server-side handling of JWT tokens [closed]

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问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 6 months ago . (spawned from this thread since this is really a question of its own and not specific to NodeJS etc) I'm implementing a REST API server with authentication, and I have successfully implemented JWT token handling so that a user can login through a /login endpoint with

when you have secret key in your project, how can pushing to GitHub be possible?

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问题 I am trying to push a brand new, empty Rail 3.0.4 project to GitHub, but just realize that the cookie session store has a secret key: In config/initializers/secret_token.rb NewRuby192Rails304Proj::Application.config.secret_token = \'22e8...\' So how can we avoid it being push to GitHub? We can ignore this file (using .gitignore ), but without this file, a Rails app won\'t run at all (and is not a complete Rails app). Or in general, other files or frameworks may have files containing secret

Why does my AES encryption throws an InvalidKeyException?

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问题 I\'m currently working on a function that encrypt/decrypts a specific file with a secret key. I have written three classes, one which generates a key, one which encrypts a file with the key and one that decrypts. Generating the key and encrypting the file works fine, but when I try to decrypt the file, an exception is thrown at line: c.init(Cipher.DECRYPT_MODE, keySpec); : java.security.InvalidKeyException: Parameters missing I take it I\'ve done something wrong when streaming the secret key

In iOS, how can I store a secret “key” that will allow me to communicate with my server?

阅读更多关于 In iOS, how can I store a secret “key” that will allow me to communicate with my server?

问题 I want to store a secret key (\"abc123\") that I will use in the header of my REST API requests. My server will check this secret key. If it matches \"abc123\", then allow the request to be made. I\'m thinking about a simple solution like: let secret = \"abc123\" But are there going to be any downfalls to this? 回答1: Crazy as it sounds, this is probably the best solution. Everything else is more complicated, but not much more secure. Any fancy obfuscation techniques you use are just going to