Aes

Advanced Encryption Standard (AES) is a cryptographic block cipher algorithm.

Rsa

RSA is a common public key algorithm, which can be used for encryption and signature

Slower data sizes

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"Rsa is much from question Encrypting / Decrypting Lists of data efficiently |

"I will also note that encrypting with rsa is much much slower than encrypting with a symmetric algorithm from question Double encrypting 2048 RSA? |

"You should be encrypting your data with a symmetric key like aes then encrypting the from question RSA Encryption and Decryption in C#.NET |

"One of the reasons to do so is that rsa is from question Manual implementation RSA java. Padding ideas "Like you heard asymmetric cryptography like rsa is from question Encrypting/Decrypting large files (.NET) |

"Execution of aes is from question RSA Encryption-Decryption of AES key and storing in file |

"Since aes is much faster than rsa and aes from question Spring saml: why in saml response, key info could be encrypted? |

"The aes key is encrypting much more data but is much from question Openssl smime: aes vs rsa - which one encrypts? "So the 115 seconds will be reduced to 3-4 secs plus the encryption decryption time used for aes which is much from question RSA encryption results in server execution timeout |

"It shows that rsa from question AES faster than RSA Encryption? |

"In general asymmetric encryption such as rsa is not used to encrypt data data is in general encrypted with symmetric encryption such as aes.the choice usually boils down to the need for separate encryption and decryption keys and or pki;both are as secure at comparable key sizes and aes from question RSA encrypt file or text |

Secure

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"Asymmetric key encryption ex rsa is no from question How the RSA algorithm (encryption and decryption) works in real life? |

"How is aes from question Sending username and password between domains securely |

"Asymmetric encryption ex rsa is no from question Understanding Encryption in Realm |

Possible performance first

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"And regarding your first question it is definitely possible to encrypt decrypt messages directly using rsa there are only technical and performance reasons aes is much from question Encrypted communication C# <-> PHP using RSA and AES |

"There are two reasons for that performance aes is faster then rsa and resources aes is from question IOS MDM profile signing, which certificate to use? |

"Note that it s also possible to create aes keys that require authentication when decrypting but not when encrypting which is rather cool aes is much much from question How do I require user authentication only for decryption but not encryption |

Others

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While 256-bit aes might sound from question SSL showing 128bit encryption for 2048 bit private key |

Rsa from question Encrypt and decrypt large string in java using RSA Rsa from question How to change AES cipher to RSA Rsa from question Comparing AES vs RSA with openssl speed? |

Block crypto algorithms like aes do suffer from this problem too but without a pki aes is no from question What is the performance difference of pki to symmetric encryption? |

But if you use public from question Securing A Chat Application |

As far as efficiency rsa is going to be orders of magnitudes from question Encrypt a long text string using RSA encryption only |

I want to encrypt and store a token which is from question Android encryption framework for encrypting large strings with user authentication only when decrypting |

In your particular case an rsa key of 2048 bits has a lot from question InvalidKeyException for encryption but not for decryption |

Considering most rsa moduli are at least 1024 bit this will be much from question OpenSSL decrypt error - Padding versus Raw |

You could for example generate a random aes key encrypt it using rsa and store it in the output file and then encrypt the file itself with aes from question Encrypting and decryption large file using rsa in java |

A rsa key as its name says is for rsa from question AES code throwing NoSuchPaddingException: Padding NoPaddin unknown |

That is actually not the case with rsa which is --- from question What is the performance difference of pki to symmetric encryption? |

Rsa is an asymmetric encryption method that encrypts a number less than the modulus of the rsa key 255 bytes would indicate that you re using a 256 8 2048 bit rsa key modulus;what you need to do to encrypt values greater than that is to generate a key encrypt the data using a symmetric cipher aes is not a bad choice and encrypt the aes key using your private rsa from question Why does Bouncy Castle RSAEngine.processblock method always returns 255 bytes when decrypting? |

The whole purpose of using aes to secure the communication or any symmetric key encryption is that it s a lot from question Handling digital signature in network applications |

Note however that doing so means that each encrypted chunk has each encrypted chunk own padding and that rsa is much more computationally from question Encrypt a long text string using RSA encryption only |

Algorithms like rsa are much from question What is the performance difference of pki to symmetric encryption? |

If the message you re encrypting is large enough not only will the message you re encrypting is large enough take more time to process but the rsa from question Encrypt a long text string using RSA encryption only |

If you re looking for privacy rsa isn t the way to go use rsa to generate a private public pair and then use them to excahnge keys -- or exchange keys out of band;use a streaming algorithm like aes from question How to encrypt and decrypt a message by using RSA with signature in android |