Hyperledger Membership Service Provider (MSP) Implementation with Identity Mixer Identity Mixer Overview IBM Identity Mixer is a cryptographic protocol suite for strong privacy- preserving authentication features, such as unlinkability and minimal attribute disclosure, efficiently. Briefly, the Identity Mixer protocols work as follows: Setup. The Issuer (Certificate Authority) signing key pair is generated credential issuing authority(ies) (CA). More details on the concepts and features of the Identity Mixer technology are described in the paper Concepts and Languages for Privacy-Preserving Attribute- Based

hyperledger.org/community/project-lifecycle]. Index MSP Implementation with Identity Mixer What is Identity Mixer? In some use cases it will be important to have cryptographic protocols that protect authenticating, and during the transfer of certified attributes. In Fabric this is achieved through Identity Mixer, which has a trust model and security guarantees similar to what is ensured by standard X.509 certificates privacy features such as “unlinkability” and minimal attribute disclosure. Briefly, the Identity Mixer protocols work as follows: Setup. The Issuer (Certificate Authority) signing key pair is generated

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Implementation with Identity Mixer: A way to keep identities anonymous and unlinkable through the use of zero-knowledge proofs. There is a tool that can generate Identity Mixer credentials in test environments environments known as idexmigen, the documentation for which can be found in Identity Mixer MSP configuration generator (idemixgen). • Setting key-level endorsement policies: Allows the default chaincode-level There are two new capabilities for v1.3: 1. A top-level channel capability that allows Identity Mixer to work. 2. A channel\application capability that enables state-based endorsement. For more information

拥抱Istio开源生态 • Envoy Sidecar替换方案 • Go SDK接入Istio • 网络代理替代Iptables流量劫持 • Handler chain接入不同生态，不依赖Mixer Istio Pilot Proxy SDK Discovery Config xDS API Server 控制面接口层 拥抱Cloud Native技术 • sidecar-injector 12000 14000 QPS QPS 原生应用 Go SDK Sidecar Istio(no mixer) Istio 0 5 10 15 20 25 Latency(ms) 响应时间 原生应用 GO SDK Sidecar Istio(no mixer) Istio Kubernetes Cluster: 3 VM Nodes(6Core, 4G Mem)

Implementation with Identity Mixer: A way to keep identities anonymous and unlinkable through the use of zero-knowledge proofs. There is a tool that can generate Identity Mixer credentials in test environments environments known as idexmigen, the documentation for which can be found in Identity Mixer MSP configuration generator (idemixgen). Setting key-level endorsement policies: Allows the default chaincode-level There are two new capabilities for v1.3: 1. A top-level channel capability that allows Identity Mixer to work. 2. A channel\application capability that enables state-based endorsement. For more information

ossaudiodev supersedes. ossaudiodev.openmixer([device]) Open a mixer device and return an OSS mixer device object. device is the mixer device filename to use. If it is not specified, this module first looks in the environment variable MIXERDEV for a device to use. If not found, it falls back to /dev/mixer. 21.10.1 Audio Device Objects Before you can write to or read from an audio device, you must call 21.10.2 Mixer Device Objects The mixer object provides two file-like methods: oss_mixer_device.close() This method closes the open mixer device file. Any further attempts to use the mixer after this

ossaudiodev supersedes. ossaudiodev.openmixer([device]) Open a mixer device and return an OSS mixer device object. device is the mixer device filename to use. If it is not specified, this module first looks in the environment variable MIXERDEV for a device to use. If not found, it falls back to /dev/mixer. 21.10.1 Audio Device Objects Before you can write to or read from an audio device, you must call 21.10.2 Mixer Device Objects The mixer object provides two file-like methods: oss_mixer_device.close() This method closes the open mixer device file. Any further attempts to use the mixer after this

ossaudiodev supersedes. ossaudiodev.openmixer([device]) Open a mixer device and return an OSS mixer device object. device is the mixer device filename to use. If it is not specified, this module first looks in the environment variable MIXERDEV for a device to use. If not found, it falls back to /dev/mixer. 21.10.1 Audio Device Objects Before you can write to or read from an audio device, you must call 21.10.2 Mixer Device Objects The mixer object provides two file-like methods: oss_mixer_device.close() This method closes the open mixer device file. Any further attempts to use the mixer after this

ossaudiodev supersedes. ossaudiodev.openmixer([device]) Open a mixer device and return an OSS mixer device object. device is the mixer device filename to use. If it is not specified, this module first looks in the environment variable MIXERDEV for a device to use. If not found, it falls back to /dev/mixer. 22.9.1 Audio Device Objects Before you can write to or read from an audio device, you must call 22.9.2 Mixer Device Objects The mixer object provides two file-like methods: oss_mixer_device.close() This method closes the open mixer device file. Any further attempts to use the mixer after this