With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Aaliyah is a visual artist.
text_B: In cryptography , power analysis is a form of side channel attack in which the attacker studies the power consumption of a cryptographic hardware device -LRB- such as a smart card , tamper-resistant `` black box '' , or integrated circuit -RRB- .. cryptography. cryptography. side channel attack. side channel attack. smart card. smart card. tamper-resistant. tamper resistance. integrated circuit. integrated circuit. The attack can non-invasively extract cryptographic keys and other secret information from the device .. Simple power analysis -LRB- SPA -RRB- involves visually interpreting power traces , or graphs of electrical activity over time .. Differential power analysis -LRB- DPA -RRB- is a more advanced form of power analysis which can allow an attacker to compute the intermediate values within cryptographic computations by statistically analyzing data collected from multiple cryptographic operations .. SPA and DPA were introduced in the open cryptologic community in 1998 by Cryptography Researchers Paul Kocher , Joshua Jaffe and Benjamin Jun. .. Cryptography Researchers. Cryptography Researchers. Paul Kocher. Paul Kocher. Joshua Jaffe. Joshua Jaffe. Benjamin Jun. Benjamin Jun
not_related.