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reversing/cryptographic-algorithms.md
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@ -8,7 +8,28 @@ If you ends in a code **using shift rights and lefts, xors and several arithmeti
#### CryptDeriveKey
If this function is used, you can find which **algorithm is being used** checking the value of the second parameter:
![](../.gitbook/assets/image%20%28190%29.png)
Check here the table of possible algorithms and their assigned values: [https://docs.microsoft.com/en-us/windows/win32/seccrypto/alg-id](https://docs.microsoft.com/en-us/windows/win32/seccrypto/alg-id)
#### RtlCompressBuffer/RtlDecompressBuffer
Compresses and decompresses a given buffer of data.
#### CryptAcquireContext
The **CryptAcquireContext** function is used to acquire a handle to a particular key container within a particular cryptographic service provider \(CSP\). **This returned handle is used in calls to CryptoAPI** functions that use the selected CSP.
#### CryptCreateHash
Initiates the hashing of a stream of data. If this function is used, you can find which **algorithm is being used** checking the value of the second parameter:
![](../.gitbook/assets/image%20%28172%29.png)
Check here the table of possible algorithms and their assigned values: [https://docs.microsoft.com/en-us/windows/win32/seccrypto/alg-id](https://docs.microsoft.com/en-us/windows/win32/seccrypto/alg-id)
### Code constants