Preface: [...] This book is about exactly that: constructing practical cryptosystems for which we can argue security under plausible assumptions. The book covers many constructions for different tasks in cryptography. For each task we define a precise security goal that we aim to achieve and then present constructions that achieve the required goal. To analyze the constructions, we develop a unified framework for doing cryptographic proofs. A reader who masters this framework will be capable of applying it to new constructions that may not be covered in the book.[...]
Abstract: We construct new multi-signature schemes that provide newfunctionality. Our schemes are designed to reduce the size of the Bitcoinblockchain, but are useful in many other settings where multi-signaturesare needed. All our constructions support both signature compressionand public-key aggregation. Hence, to verify that a number of partiessigned a common message m, the verifier only needs a short multi-signature, a short aggregation of their public keys, and the message m.We give new constructions that are derived from Schnorr signatures andfrom BLS signatures. Our constructions are in the plain public key model,meaning that users do not need to prove knowledge or possession of theirsecret key.
Intro: Consensus algorithm is one of the most important components in blockchain. Harmony Blockchain achieves consensus through the Fast Byzantine Fault Tolerance (FBFT) algorithm. In FBFT, instead of asking all validators to broadcast their votes, the leader runs a multi-signature signing process to collect the validators’ votes in a O(1)-sized multi-signature and then broadcast it to all validators. Consensus is reached when all the validators validate the aggregated signature against the aggregated public keys for this round of consensus.
* The Art of Metric Relabeling in Prometheus:
https://heiioncall.com/guides/the-art-of-metric-relabeling-in-prometheus
* relabeler online testing tool :
https://relabeler.promlabs.com/
* open / demo instance of grafana : https://play.grafana.org/
* Grafana dashboards directory : https://grafana.com/grafana/dashboards/
* Open / demo instance of prometheus :
https://prometheus.demo.prometheus.io/query
https://prometheus.demo.prometheus.io/config
Terraform Associate exam is a 60-minute, multiple choice exam for beginner-level learners.
Terraform Authoring and Operations Professional exam is 4 hours long, lab-based with some MCQs, and intended for very experienced Terraform users.
All domains covered in terraform associate certification / more in-depth about what exam covers: https://developer.hashicorp.com/terraform/tutorials/certification-003
Hashicorp discuss forum: https://discuss.hashicorp.com/c/terraform-core/27
official forum for Terraform newbies: HashiCorp Discuss: https://discuss.hashicorp.com/latest
Notice which questions have checkboxes, and for those, make sure you check the right number of boxes. This goes back to reading the whole question.
Some HCP topics covered at a basic level, specifically in objective 9, "Understanding HCP Terraform capabilities". You can learn more about exactly what topics are covered and how to study for them by reviewing our study materials: https://developer.hashicorp.com/terraform/tutorials/certification-003
Are the questions focused on AWS provider? exams are provider-agnostic when possible.
exam would be on which tf version? Product version tested: Terraform 1.0 or higher
If you already hold an unexpired Terraform Associate certification, and then pass Terraform Pro, you’re Associate certification expiration date will be extended.
What is the validity for this certification ? certifications are valid for two years
Other certs
Study resources for Vault Pro: https://developer.hashicorp.com/vault/tutorials/ops-pro-cert
