CyaSSL Manual
03.02.2011
Version 1.3 Table of Contents
Chapter 1: Introduction
Chapter 2: Obtaining Support
I. Where to Find Help and Information
II. Bug Reports and Support Issues
Chapter 3: Licensing
I. Open Source
II. Commercial Licensing
III. FLOSS Exception Details
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Chapter 4: SSL/TLS Overview
I. General Architecture
II. Differences between SSL and TLS Protocol Versions
III. Reference Information on SSL/TLS
Chapter 5: Overview of CyaSSL
I. Overview
II. Supported Cipher Suites
III. Choosing the Correct yaSSL Technology
IV. Why Developers Choo CyaSSL
V. Product Relea Information
Chapter 6: Building CyaSSL
I. Downloading CyaSSL
II. Building on *nix
III. Building on Windows
IV. Building in a Non-Standard Environment
V. ./configure Options
Chapter 7: Getting Started
I. General Description
II. Testsuite
III. Client Example
IV. Server Example
V. EchoServer Example
VI. EchoClient Example
VII. Benchmark
VIII. Changing a Client Application to U CyaSSL
IX. Changing a Server Application to U CyaSSL Chapter 8: Additional Features
I. Stream Ciphers
II. AES-NI Support
III. Digitally Signing and Authenticating with CyaSSL
IV. IPv6 Support
V. SSL Sniffer Support
VI. Thread Safety
Chapter 9: Extensions Reference
I. Startup and Exit
II. Compression
III. CyaSSL Debugging
IV. Domain Name check for Server Certificates
V. No File System and Using Certificates
VI. Handshake Callback
VII. Timeout Callback
VIII. Pre Shared Keys
IX. TLS 1.1 and 1.2
X. RSA Key Generation
XI. Certificate Generation
XII. Standard Library Abstraction Layer
XIII. Input / Output Buffers
XIV. CyaSSL NTRU Cipher Suites
Chapter 10: CTaoCrypt Usage Reference
I. Hash Functions
a. MD5
b. SHA
c. Other Hashes
II. Message Digests
III. Block Ciphers
a. DES and 3DES
b. AES
IV. Stream Ciphers
a. ARC4
三脚架钢琴b. RABBIT
c. HC-128
V. Public Key Cryptography
a. RSA
Chapter 11: SSL Tutorial
I. Introduction
II. Source Code
III. Ba Example Modifications
IV. Initial Setup
V. Initial Compilation
VI. Libraries
VII. Headers深夜失眠的经典句子
VIII. Startup/Shutdown
IX. SSL Object
X. Sending Data
XI. Signal Handling
XII. Echo Server
XIII. Certificates
Chapter 12: Best Practices for Embedded Devices
I. Creating Private Keys
Chapter 13: OpenSSL Compatibility
I. Compatibility with OpenSSL
II. Differences Between CyaSSL and OpenSSL
III. Supported OpenSSL Structs
IV. Supported OpenSSL Functions
猫为什么要绝育V. x509 Certificates
Chapter 14: Consulting
I. Feature Additions and Porting
II. Competitive Upgrade Program
III. Design Consulting
Appendix A: FLOSS Exception
I. Exception Intent
II. Legal Terms and Conditions
Chapter 1: Introduction
yaSSL focus on providing embedded curity solutions with an emphasis on speed and size. With dual-licend products to cater to a diversity of urs ranging from
the hobbyist to the ur with commercial needs, yaSSL is happy to help customers and community members in any way we can. Our products are Open Source, giving customers the freedom to look under the hood.
CyaSSL is a C-language-bad SSL library targeted for embedded and RTOS environments, primarily becau of its small size and speed. CyaSSL is commonly ud in applications for standard operating environments as well becau of its royalty free pricing and cross platform support. CyaSSL supports the industry standards up to the current TLS 1.2 level, and is up to 20 times smaller than OpenSSL.
This manual is written as a technical guide to the CyaSSL embedded SSL library. It will explain how to obtain support, licensing details, a quick overview of SSL and TLS, details on building and integrating CyaSSL as well as a reference for CTaoCrypt and CyaSSL.
Chapter 2: Obtaining Support
I. Where to Find Help and Information
For product support, we maintain an online forum for the yaSSL related product family. Plea post to our forums or contact us at with any questions. yaSSL Forums(/forums)
For information regarding our products, questions regarding licensing, or general comments, plea contact us at
II. Bugs Reports and Support Issues
If you are submitting a bug report or asking about a problem you are encountering, plea include the following information with your submission:
1.CyaSSL version number
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2.Operating System version
蝴蝶发簪3.Compiler version
4.The exact error you are eing
5. A description of how we can reproduce or try to replicate this problem豆腐英语
With the above information, we will do our best to resolve your problems. Without
this information, it is very hard to pinpoint the source of the problem. We value your feedback and make it a priority to get back to you as soon as possible.法式吐司
