Sebastian Stenzel overheadhunter
🇺🇦
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| FROM ruby:2.4 | |
| WORKDIR /usr/src/app | |
| ENV RAILS_ENV=production \ | |
| RUBY_GC_MALLOC_LIMIT=90000000 \ | |
| RUBY_GLOBAL_METHOD_CACHE_SIZE=131072 \ | |
| DISCOURSE_DB_HOST=postgres \ | |
| DISCOURSE_REDIS_HOST=redis \ | |
| DISCOURSE_SERVE_STATIC_ASSETS=true |
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| version: '3.4' | |
| services: | |
| wildfly: | |
| image: skymatic/defendor:0.4.0 | |
| environment: | |
| - POSTGRES_USER=defendor | |
| - POSTGRES_PASSWORD=notASecurePassword | |
| - POSTGRES_DB=defendor | |
| - SYSLOG_HOST=syslog |
overheadhunter
/ BenchmarkTest.java
Created
July 15, 2021 10:58
Benchmark of different strlen() variation
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| import jdk.incubator.foreign.MemoryAccess; | |
| import jdk.incubator.foreign.MemorySegment; | |
| import org.openjdk.jmh.annotations.Benchmark; | |
| import org.openjdk.jmh.annotations.BenchmarkMode; | |
| import org.openjdk.jmh.annotations.Fork; | |
| import org.openjdk.jmh.annotations.Mode; | |
| import org.openjdk.jmh.annotations.OutputTimeUnit; | |
| import org.openjdk.jmh.annotations.Warmup; | |
| import org.openjdk.jmh.infra.Blackhole; |
overheadhunter
/ concatKdf.ts
Last active
July 4, 2022 18:40
TypeScript Key Derivation Functions ANSI-X9.63 and NIST SP 800-56A Rev. 2 ConcatKDF
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| /** | |
| * KDF as defined in <a href="https://doi.org/10.6028/NIST.SP.800-56Ar2">NIST SP 800-56A Rev. 2 Section 5.8.1</a> using SHA-256 | |
| * | |
| * @param z A shared secret | |
| * @param keyDataLen Desired key length (in bytes) | |
| * @param otherInfo Concatenated form of AlgorithmID || PartyUInfo || PartyVInfo {|| SuppPubInfo }{|| SuppPrivInfo } | |
| * @returns key data | |
| */ | |
| public static async concatKDF(z: Uint8Array, keyDataLen: number, otherInfo: Uint8Array): Promise<Uint8Array> { | |
| const hashLen = 32; // output length of SHA-256 |
overheadhunter
/ DecryptAlloc.java
Last active
October 5, 2022 11:48
Example reproducing the issue described in https://bugs.openjdk.org/browse/JDK-8280703
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| import javax.crypto.Cipher; | |
| import javax.crypto.spec.IvParameterSpec; | |
| import javax.crypto.spec.SecretKeySpec; | |
| import java.nio.ByteBuffer; | |
| import java.security.GeneralSecurityException; | |
| /** | |
| * This demonstrates a memory allocation problem in com.sun.crypto.provider.CipherCore. | |
| * <p> | |
| * To reproduce the issue, run this class using: |
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