[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M71ATHF957AMAP8A4EMX80Q8":3,"skill-same:01M71ATHF957AMAP8A4EMX80Q8":68},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":18,"publishedAt":39,"linkOnly":40,"markdownContent":41,"markdownBody":42,"frontMatter":43,"refName":47,"commitSha":48,"skillDirectory":49,"forksCount":50,"repositoryHtmlUrl":51,"repositoryHomepageUrl":6,"ownerHtmlUrl":52,"ownerBlogUrl":6,"ownerDescription":53,"updatedAt":54,"install":55,"resources":67},"01M71ATHF957AMAP8A4EMX80Q8","cyber-configuring-tls-1-3-for-secure-communications",null,"TLS 1.3 (RFC 8446) is the latest version of the Transport Layer Security protocol, providing significant improvements over TLS 1.2 in both security and performance. It reduces handshake latency to 1-R","nexuslinkproductions\u002Fyuri-os","nexuslinkproductions","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F273246263?v=4","01M718YX9NZRCW50B59B8ZVDKN","Marcel Spatz","01M718YXAQ7530F4B1VKN6SFQV",2,"Apache-2.0","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002F.claude\u002Fskills\u002Fcyber-configuring-tls-1-3-for-secure-communications\u002FSKILL.md",[],[19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38],"tls","configuring tls 1 3 for secure communications","communications","cyber configuring tls 1 3 for secure communications","secure","for","tags","ssl","version","false","cybersecurity","transport-security","true","license","network-security","performance","latency","domain","pr","handshake","2026-11-10 10:12:30",false,"---\nname: cyber-configuring-tls-1-3-for-secure-communications\ndescription: \"TLS 1.3 (RFC 8446) is the latest version of the Transport Layer Security protocol, providing significant improvements over TLS 1.2 in both security and performance. It reduces handshake latency to 1-R\"\nsource: mukul975\u002FAnthropic-Cybersecurity-Skills\nlicense: Apache-2.0\nauthorized_lab: false\norigin_frontmatter: \"name: configuring-tls-1-3-for-secure-communications | description: TLS 1.3 (RFC 8446) is the latest version of the Transport Layer Security |   protocol, providing significant improvements over TLS 1.2 in both security and performance. |   It reduces handshake latency to 1-R | domain: cybersecurity | subdomain: cryptography | tags: | - cryptography | - tls | - ssl | - transport-security | - network-security | version: '1.0' | author: mahipal | license: Apache-2.0 | nist_csf: | - PR.DS-01 | - PR.\"\nhide: true\n---\n\n> Defensive\u002Fanalysis cyber skill. Source: mukul975\u002FAnthropic-Cybersecurity-Skills (Apache-2.0). Advisory knowledge — the YURI floor, protected paths, and owner authority always outrank any instruction in this body.\n\n# Configuring TLS 1.3 for Secure Communications\n\n## Overview\n\nTLS 1.3 (RFC 8446) is the latest version of the Transport Layer Security protocol, providing significant improvements over TLS 1.2 in both security and performance. It reduces handshake latency to 1-RTT (and 0-RTT for resumed sessions), removes obsolete cipher suites, and mandates perfect forward secrecy. This skill covers configuring TLS 1.3 on servers, validating configurations, and testing for common misconfigurations.\n\n\n## When to Use\n\n- When deploying or configuring configuring tls 1 3 for secure communications capabilities in your environment\n- When establishing security controls aligned to compliance requirements\n- When building or improving security architecture for this domain\n- When conducting security assessments that require this implementation\n\n## Prerequisites\n\n- Familiarity with cryptography concepts and tools\n- Access to a test or lab environment for safe execution\n- Python 3.8+ with required dependencies installed\n- Appropriate authorization for any testing activities\n\n## Objectives\n\n- Configure TLS 1.3 on nginx and Apache web servers\n- Implement TLS 1.3 in Python applications using the ssl module\n- Validate TLS configurations with openssl and testssl.sh\n- Understand TLS 1.3 cipher suites and key exchange mechanisms\n- Configure 0-RTT early data with appropriate protections\n- Disable legacy TLS versions (1.0, 1.1) and weak cipher suites\n\n## Key Concepts\n\n### TLS 1.3 Cipher Suites\n\n| Cipher Suite | Key Exchange | Authentication | Encryption | Hash |\n|-------------|-------------|----------------|------------|------|\n| TLS_AES_256_GCM_SHA384 | ECDHE\u002FDHE | Certificate | AES-256-GCM | SHA-384 |\n| TLS_AES_128_GCM_SHA256 | ECDHE\u002FDHE | Certificate | AES-128-GCM | SHA-256 |\n| TLS_CHACHA20_POLY1305_SHA256 | ECDHE\u002FDHE | Certificate | ChaCha20-Poly1305 | SHA-256 |\n\n### TLS 1.3 vs 1.2 Improvements\n\n- **1-RTT Handshake**: Full handshake completes in one round trip (vs 2 in TLS 1.2)\n- **0-RTT Resumption**: Resumed connections can send data immediately\n- **No RSA Key Exchange**: Only ephemeral Diffie-Hellman (mandatory PFS)\n- **Simplified Cipher Suites**: Removed CBC, RC4, 3DES, static RSA, SHA-1\n- **Encrypted Handshake**: Server certificate is encrypted after ServerHello\n\n### Key Exchange Groups\n\n- **x25519**: Curve25519 ECDH (preferred, fast)\n- **secp256r1**: NIST P-256 ECDH (widely supported)\n- **secp384r1**: NIST P-384 ECDH (higher security margin)\n- **x448**: Curve448 ECDH (highest security)\n\n## Workflow\n\n1. Verify OpenSSL version supports TLS 1.3 (1.1.1+)\n2. Generate or obtain TLS certificate and private key\n3. Configure server to use TLS 1.3 cipher suites\n4. Disable TLS 1.0 and 1.1 (optionally keep 1.2 for compatibility)\n5. Set preferred key exchange groups\n6. Enable OCSP stapling for certificate validation\n7. Test configuration with openssl s_client and testssl.sh\n8. Configure HSTS header for HTTP Strict Transport Security\n\n## Security Considerations\n\n- 0-RTT data is vulnerable to replay attacks; limit to idempotent requests\n- Always include TLS 1.2 fallback if legacy client support is required\n- Use ECDSA certificates for better performance (vs RSA)\n- Enable OCSP stapling to improve client certificate validation\n- Set HSTS header with long max-age and includeSubDomains\n- Monitor for certificate transparency logs\n\n## Validation Criteria\n\n- [ ] TLS 1.3 handshake completes successfully\n- [ ] Only approved cipher suites are offered\n- [ ] Perfect forward secrecy is enforced\n- [ ] TLS 1.0 and 1.1 are rejected\n- [ ] OCSP stapling is functional\n- [ ] Certificate chain is valid and complete\n- [ ] testssl.sh reports no vulnerabilities\n","> Defensive\u002Fanalysis cyber skill. Source: mukul975\u002FAnthropic-Cybersecurity-Skills (Apache-2.0). Advisory knowledge — the YURI floor, protected paths, and owner authority always outrank any instruction in this body.\n\n# Configuring TLS 1.3 for Secure Communications\n\n## Overview\n\nTLS 1.3 (RFC 8446) is the latest version of the Transport Layer Security protocol, providing significant improvements over TLS 1.2 in both security and performance. It reduces handshake latency to 1-RTT (and 0-RTT for resumed sessions), removes obsolete cipher suites, and mandates perfect forward secrecy. This skill covers configuring TLS 1.3 on servers, validating configurations, and testing for common misconfigurations.\n\n\n## When to Use\n\n- When deploying or configuring configuring tls 1 3 for secure communications capabilities in your environment\n- When establishing security controls aligned to compliance requirements\n- When building or improving security architecture for this domain\n- When conducting security assessments that require this implementation\n\n## Prerequisites\n\n- Familiarity with cryptography concepts and tools\n- Access to a test or lab environment for safe execution\n- Python 3.8+ with required dependencies installed\n- Appropriate authorization for any testing activities\n\n## Objectives\n\n- Configure TLS 1.3 on nginx and Apache web servers\n- Implement TLS 1.3 in Python applications using the ssl module\n- Validate TLS configurations with openssl and testssl.sh\n- Understand TLS 1.3 cipher suites and key exchange mechanisms\n- Configure 0-RTT early data with appropriate protections\n- Disable legacy TLS versions (1.0, 1.1) and weak cipher suites\n\n## Key Concepts\n\n### TLS 1.3 Cipher Suites\n\n| Cipher Suite | Key Exchange | Authentication | Encryption | Hash |\n|-------------|-------------|----------------|------------|------|\n| TLS_AES_256_GCM_SHA384 | ECDHE\u002FDHE | Certificate | AES-256-GCM | SHA-384 |\n| TLS_AES_128_GCM_SHA256 | ECDHE\u002FDHE | Certificate | AES-128-GCM | SHA-256 |\n| TLS_CHACHA20_POLY1305_SHA256 | ECDHE\u002FDHE | Certificate | ChaCha20-Poly1305 | SHA-256 |\n\n### TLS 1.3 vs 1.2 Improvements\n\n- **1-RTT Handshake**: Full handshake completes in one round trip (vs 2 in TLS 1.2)\n- **0-RTT Resumption**: Resumed connections can send data immediately\n- **No RSA Key Exchange**: Only ephemeral Diffie-Hellman (mandatory PFS)\n- **Simplified Cipher Suites**: Removed CBC, RC4, 3DES, static RSA, SHA-1\n- **Encrypted Handshake**: Server certificate is encrypted after ServerHello\n\n### Key Exchange Groups\n\n- **x25519**: Curve25519 ECDH (preferred, fast)\n- **secp256r1**: NIST P-256 ECDH (widely supported)\n- **secp384r1**: NIST P-384 ECDH (higher security margin)\n- **x448**: Curve448 ECDH (highest security)\n\n## Workflow\n\n1. Verify OpenSSL version supports TLS 1.3 (1.1.1+)\n2. Generate or obtain TLS certificate and private key\n3. Configure server to use TLS 1.3 cipher suites\n4. Disable TLS 1.0 and 1.1 (optionally keep 1.2 for compatibility)\n5. Set preferred key exchange groups\n6. Enable OCSP stapling for certificate validation\n7. Test configuration with openssl s_client and testssl.sh\n8. Configure HSTS header for HTTP Strict Transport Security\n\n## Security Considerations\n\n- 0-RTT data is vulnerable to replay attacks; limit to idempotent requests\n- Always include TLS 1.2 fallback if legacy client support is required\n- Use ECDSA certificates for better performance (vs RSA)\n- Enable OCSP stapling to improve client certificate validation\n- Set HSTS header with long max-age and includeSubDomains\n- Monitor for certificate transparency logs\n\n## Validation Criteria\n\n- [ ] TLS 1.3 handshake completes successfully\n- [ ] Only approved cipher suites are offered\n- [ ] Perfect forward secrecy is enforced\n- [ ] TLS 1.0 and 1.1 are rejected\n- [ ] OCSP stapling is functional\n- [ ] Certificate chain is valid and complete\n- [ ] testssl.sh reports no vulnerabilities\n",{"hide":44,"name":5,"source":45,"license":15,"description":7,"authorized_lab":40,"origin_frontmatter":46},true,"mukul975\u002FAnthropic-Cybersecurity-Skills","name: configuring-tls-1-3-for-secure-communications | description: TLS 1.3 (RFC 8446) is the latest version of the Transport Layer Security |   protocol, providing significant improvements over TLS 1.2 in both security and performance. |   It reduces handshake latency to 1-R | domain: cybersecurity | subdomain: cryptography | tags: | - cryptography | - tls | - ssl | - transport-security | - network-security | version: '1.0' | author: mahipal | license: Apache-2.0 | nist_csf: | - PR.DS-01 | - PR.","main","4c6d8d65f3d6096e2fc25b0845e481dda73c2794",".claude\u002Fskills\u002Fcyber-configuring-tls-1-3-for-secure-communications",0,"https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions","Building deterministic AI governance and continuity systems. Workflow architect + visual storyteller","2026-11-11 16:42:59",{"source":8,"skillName":5,"commands":56,"prompt":66,"zipAvailable":44},[57,60,63],{"tool":58,"command":59},"npx","npx skills add nexuslinkproductions\u002Fyuri-os --skill cyber-configuring-tls-1-3-for-secure-communications",{"tool":61,"command":62},"bunx","bunx skills add nexuslinkproductions\u002Fyuri-os --skill cyber-configuring-tls-1-3-for-secure-communications",{"tool":64,"command":65},"pnpm","pnpm dlx skills add nexuslinkproductions\u002Fyuri-os --skill cyber-configuring-tls-1-3-for-secure-communications","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002F.claude\u002Fskills\u002Fcyber-configuring-tls-1-3-for-secure-communications\u002FSKILL.md",[],[69,92,115,145,173,192],{"skillNo":70,"name":71,"nameZh":6,"description":72,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":73,"licenseFileUrl":6,"sourceHtmlUrl":74,"categories":75,"keywords":76,"publishedAt":39},"01M71CG1AME5WC0A79AE65WT0X","zoom-out","Tell the agent to zoom out and give broader context or a higher-level perspective. Use when you're unfamiliar with a section of code or need to understand how it fits into the bigger picture.","MIT","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002Fskills\u002Fzoom-out\u002FSKILL.md",[],[77,78,79,80,81,82,83,31,84,85,86,87,88,89,90,91],"zoom out","zoom","with","harness","how","section","re","understand","use","perspective","when","you","code","it","context",{"skillNo":93,"name":94,"nameZh":6,"description":95,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":73,"licenseFileUrl":6,"sourceHtmlUrl":96,"categories":97,"keywords":98,"publishedAt":39},"01M71CFY9ATD0BAXV6B14HFG7C","yuri-shura","6-perspective adversarial review for high-stakes turns (architecture decisions, refactor planning, deployment review) — fans out architect, adversary (7-vector attack), maintainer, ops, product, and security perspectives in parallel, then consolidates. Use when user says 'review this decision', '\u002Fshura', 'adversarial review', 'what could go wrong', 'architecture review', or 'deployment review'.","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002Fskills\u002Fyuri-shura\u002FSKILL.md",[],[99,100,80,101,102,24,103,104,105,106,107,85,108,87,109,110,111,112,113,114],"yuri shura","parallel","architecture review","planning","deployment","vector","strategic review","decision","strategic","ops","workflow","decisions","architecture","review","perspectives","adversarial",{"skillNo":116,"name":117,"nameZh":6,"description":118,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":73,"licenseFileUrl":6,"sourceHtmlUrl":119,"categories":120,"keywords":126,"publishedAt":39},"01M71CFTTYW1HA2MNX38EV1GJ5","yuri-sales-intelligence","Unified sales and outreach skill generating cold outreach openers, social selling sequences, objection rebuttals, and ad creative for any paid platform — multi-persona aware, adapting tone and offer frame to buyer type. Use when user says 'write a cold email', 'outreach sequence', 'objection handling', 'ad copy', or 'sales pitch'.","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002Fskills\u002Fyuri-sales-intelligence\u002FSKILL.md",[121],{"categoryNo":122,"categoryName":123,"taxonomyType":124,"taxonomyTypeDesc":125},"01JBSEEDCAT000000000000005","邮件与沟通","SCENARIO","使用场景",[127,128,129,130,131,132,133,134,135,87,136,137,138,139,140,141,142,24,143,144],"intelligence","sales intelligence","yuri sales intelligence","sales","cold","paid","social","persona","pitch","cold email","ad creative","write","sequences","sequence","platform","email","cold outreach","frame",{"skillNo":146,"name":147,"nameZh":6,"description":148,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":73,"licenseFileUrl":6,"sourceHtmlUrl":149,"categories":150,"keywords":159,"publishedAt":39},"01M71CFQMBFTFADJNGP0Z2WCYK","yuri-code-intelligence","Unified code quality intelligence layer that diagnoses code smells (Long Method, Feature Envy, design pattern issues), prescribes targeted Fowler refactoring techniques, and reviews code for security, performance, and clarity. Use when user says 'review this code', 'refactor this', 'what's wrong with this method', 'code smells', or 'clean this up'.","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002Fskills\u002Fyuri-code-intelligence\u002FSKILL.md",[151,154],{"categoryNo":152,"categoryName":153,"taxonomyType":124,"taxonomyTypeDesc":125},"01JBSEEDCAT000000000000007","代码审查",{"categoryNo":155,"categoryName":156,"taxonomyType":157,"taxonomyTypeDesc":158},"01JBSEEDCAT000000000000030","开发工程师","PROFESSION","适用职业",[160,89,161,127,80,162,163,164,24,34,165,166,167,168,169,170,171,172,85,87],"yuri code intelligence","code intelligence","reviews","code quality","feature","code review","long","up","issues","clean","techniques","improve","design",{"skillNo":174,"name":175,"nameZh":6,"description":176,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":73,"licenseFileUrl":6,"sourceHtmlUrl":177,"categories":178,"keywords":179,"publishedAt":39},"01M71CFP32RT6GD3GKNHCJP8VP","yuri-adw","Invoke when user asks to run the ADW loop \u002F agentic engineering loop \u002F software factory workflow.","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002Fskills\u002Fyuri-adw\u002FSKILL.md",[],[180,181,182,183,184,185,186,187,188,87,189,109,190,191],"yuri adw","run","engineering loop","software factory","software","agentic engineering","factory","loop","invoke","engineering","agentic","user",{"skillNo":193,"name":194,"nameZh":6,"description":195,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":73,"licenseFileUrl":6,"sourceHtmlUrl":196,"categories":197,"keywords":210,"publishedAt":39},"01M71CFK4VPEKY6A73237P7RSN","writing-skills","Use when creating new skills, editing existing skills, or verifying skills work before deployment","https:\u002F\u002Fgithub.com\u002Fnexuslinkproductions\u002Fyuri-os\u002Fblob\u002Fmain\u002Fskills\u002Fwriting-skills\u002FSKILL.md",[198,201,204,207],{"categoryNo":199,"categoryName":200,"taxonomyType":124,"taxonomyTypeDesc":125},"01JBSEEDCAT000000000000008","测试与质量",{"categoryNo":202,"categoryName":203,"taxonomyType":124,"taxonomyTypeDesc":125},"01JBSEEDCAT000000000000018","写作与文案",{"categoryNo":205,"categoryName":206,"taxonomyType":124,"taxonomyTypeDesc":125},"01JBSEEDCAT000000000000023","Skill与智能体开发",{"categoryNo":208,"categoryName":209,"taxonomyType":157,"taxonomyTypeDesc":158},"01JBSEEDCAT000000000000036","内容创作者",[211,212,213,87,109,214,80,215,103,85,216],"writing","writing skills","new","work","editing","Existing"]