The OpenSSL Project Pages at openssl.github.io are a valuable source of information if you want to get familiar with our development process on GitHub. Legalities A number of nations restrict the use or export of cryptography.
Apache Commons Crypto is a cryptographic library optimized with AES-NI (Advanced Encryption Standard New Instructions). It provides Java API for both cipher level and Java stream level. Developers can use it to implement high performance AES encryption/decryption with the minimum code and effort. Oct 16, 2018 · The AES-NI support is a great improvement, as all recent x86 CPUs support for it. Using it, the performance of the encrypted channel is greatly improved. The LibreSSL library has support for AES-NI, so you only need to enable it (and if it's enabled, but not supported by the hardware, then the software implementation is used). Apr 28, 2016 · Quoting form the draft of OpenSSL upstream advisory: Padding oracle in AES-NI CBC MAC check (CVE-2016-2107) ===== Severity: High A MITM attacker can use a padding oracle attack to decrypt traffic when the connection uses an AES CBC cipher and the server support AES-NI. AES-NI is also supported on Open Servers. Affected encryption algorithms include: AES-CBC (128-bit and 256-bit) AES-GCM (128-bit and 256-bit), which shows the most significant improvement - with AES-NI, it is faster than AES-CBC, when both sides support AES-NI. Without AES-NI support, it is slightly slower than AES-CBC + HMAC-SHA1 Oct 03, 2018 · Previously it was reported that the Intel AES-NI patch caused the performance on non-AES-NI capable hardware to improve by a factor of 2. Closer investigation showed that the system OpenSSL library 0.9.8e-fips is actually at fault: after recompiling OpenSSL from source, with or without the Intel AES-NI patch, the performance also doubled. Solaris AESNI OpenSSL Engine for Intel Westmere. Cryptography is a major component of secure e-commerce. Since cryptography is compute intensive and adds a significant load to applications, such as SSL web servers (https), crypto performance is an important factor.
Mar 08, 2020 · Apparently, since 1.0.1 openssl doesn’t need a specific engine anymore to use the AES-NI-instructions; it has native support via evp. To test for AES-NI support in openssl 1.0.1 and newer, simply compare the output of these commands: $ openssl speed aes-256-cbc $ openssl speed -evp aes-256-cbc
OpenSSL used to provide a function to get the capabilities detected for an ia32 processor, but its no longer available. See the discussion of OPENSSL_ia32cap_loc in the OPENSSL_ia32cap man page. Also see Verify AES-NI use at runtime? on the OpenSSL mailing list. If you are linking to the OpenSSL static library, then you can use: Sep 07, 2011 · The built-in version had AES-NI support compiled into it, and I compiled a version that didn’t include the hooks. The command I ran was openssl speed -evp aes-128-cbc. The trick is that the software must be told to use the AES-NI instruction set. You can check to see if OpenSSL has AES-NI support built-in by running the command openssl engine.
Solaris AESNI OpenSSL Engine for Intel Westmere. Cryptography is a major component of secure e-commerce. Since cryptography is compute intensive and adds a significant load to applications, such as SSL web servers (https), crypto performance is an important factor.
It's dual CPU's supported AES-NI, so when decided to separate my firewall/gateway/etc.. off my ESXi server (mostly so that I didn't bring down the internet every time I needed to tinker/reboot) I wanted a CPU with AES-NI (which for Intel Gen 3 meant at least an I5). AES-NI is just a fast way for the processor to execute the calculations of AES. Normally the computer has to calculate every single step of the AES key schedule and the rounds as a single instruction: Substitute it with the S-boxes, shift the rows, mix the columns, XOR the round key.