Class: SelfCrypto::Account

Inherits:
Object
  • Object
show all
Defined in:
lib/self_crypto/account.rb,
ext/self_crypto/account.c

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Object 



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# File 'ext/self_crypto/account.c', line 11

static VALUE initialize(int argc, VALUE * argv, VALUE self) {
    VALUE pickle, password, seed, opts;
    size_t size;
    OlmAccount * this;

    Data_Get_Struct(self, OlmAccount, this);

    (void) rb_scan_args(argc, argv, "0:", & opts);

    opts = (opts == Qnil) ? rb_hash_new() : opts;

    pickle = rb_hash_aref(opts, ID2SYM(rb_intern("pickle")));
    password = rb_hash_aref(opts, ID2SYM(rb_intern("password")));
    seed = rb_hash_aref(opts, ID2SYM(rb_intern("seed")));

    if (pickle != Qnil) {
        if (rb_obj_is_kind_of(pickle, rb_cString) != Qtrue) {
            rb_raise(rb_eTypeError, "pickle must be kind of String");
        }
    }

    if (password != Qnil) {
        if (rb_obj_is_kind_of(password, rb_cString) != Qtrue) {
            rb_raise(rb_eTypeError, "password must be kind of String");
        }
    } else {
        password = rb_str_new2("");
    }

    if (pickle != Qnil) {
        if (self_olm_unpickle_account(this, RSTRING_PTR(password), RSTRING_LEN(password), RSTRING_PTR(dup_string(pickle)), RSTRING_LEN(pickle)) == -1) {
            raise_olm_error(self_olm_account_last_error(this));
        }
    } else if (seed != Qnil) {
        uint8_t *ed25519_pk = malloc_or_raise(self_crypto_sign_publickeybytes());
        uint8_t *ed25519_sk = malloc_or_raise(self_crypto_sign_secretkeybytes());
        uint8_t *curve25519_pk = malloc_or_raise(self_crypto_sign_publickeybytes()); // equivalent to crypto_scalarmult_curve25519_BYTES
        uint8_t *curve25519_sk = malloc_or_raise(self_crypto_sign_publickeybytes()); // equivalent to crypto_scalarmult_curve25519_BYTES
        size_t status = self_crypto_sign_seed_keypair(
            ed25519_pk,
            ed25519_sk,
            RSTRING_PTR(seed)
        );

        if (status != 0) {
            raise_olm_error("could not generate key from seed");
        }

        status = self_crypto_sign_ed25519_pk_to_curve25519(
            curve25519_pk,
            ed25519_pk
        );

        if (status != 0) {
            raise_olm_error("could not convert ed25519 public key to curve25519");
        }

        status = self_crypto_sign_ed25519_sk_to_curve25519(
            curve25519_sk,
            ed25519_sk
        );

        if (status != 0) {
            raise_olm_error("could not convert ed25519 secret key to curve25519");
        } 

        status = self_olm_import_account(
            this,
            ed25519_sk,
            ed25519_pk,
            curve25519_sk,
            curve25519_pk
        );

        if (status == -1) {
            raise_olm_error(self_olm_account_last_error(this));
        }
    } else {
        size = self_olm_create_account_random_length(this);

        if (self_olm_create_account(this, RSTRING_PTR(get_random(size)), size) == -1) {
            raise_olm_error(self_olm_account_last_error(this));
        }
    }

    return self;
}

Class Method Details

.from_pickle(pickle, password = "") ⇒ Account

Parameters:

  • pickle (String) —

    pickled state

  • password (String) (defaults to: "") —

    password used to encrypt pickled state

Returns:



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# File 'lib/self_crypto/account.rb', line 10

def self.from_pickle(pickle, password="")
  Account.new(pickle: pickle, password: password)
end

.from_seed(seed) ⇒ Object 



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# File 'lib/self_crypto/account.rb', line 14

def self.from_seed(seed)
  Account.new(seed: Base64.decode64(seed))
end

Instance Method Details

#gen_otk(number = 1) ⇒ Object 



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# File 'lib/self_crypto/account.rb', line 18

def gen_otk(number=1)
  generate_one_time_keys(number)
end

#generate_one_time_keys(number) ⇒ Object 



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# File 'ext/self_crypto/account.c', line 114

static VALUE generate_one_time_keys(VALUE self, VALUE number) {
    size_t size;
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    size = self_olm_account_generate_one_time_keys_random_length(this, NUM2SIZET(number));

    if (self_olm_account_generate_one_time_keys(this, NUM2SIZET(number), RSTRING_PTR(get_random(size)), size) == -1) {
        raise_olm_error(self_olm_account_last_error(this));
    }

    return self;
}

#identity_keys ⇒ Object Also known as: ik 



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# File 'ext/self_crypto/account.c', line 99

static VALUE identity_keys(VALUE self) {
    OlmAccount * this;
    size_t size;
    Data_Get_Struct(self, OlmAccount, this);

    size = self_olm_account_identity_keys_length(this);
    uint8_t buf[size];

    if (self_olm_account_identity_keys(this, buf, size) != size) {
        raise_olm_error(self_olm_account_last_error(this));
    }

    return rb_funcall(rb_eval_string("JSON"), rb_intern("parse"), 1, rb_str_new((char * ) buf, size));
}

#inbound_session(*args) ⇒ Object 



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# File 'ext/self_crypto/account.c', line 220

static VALUE inbound_session(int argc, VALUE * argv, VALUE self) {
    VALUE args[] = {
        self,
        Qnil,
        Qnil
    };

    (void) rb_scan_args(argc, argv, "11", & args[1], & args[2]);

    return rb_class_new_instance(sizeof(args) / sizeof( * args), args, rb_eval_string("SelfCrypto::InboundSession"));
}

#last_error ⇒ Object 



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# File 'ext/self_crypto/account.c', line 4

static VALUE last_error(VALUE self) {
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    return rb_funcall(rb_eval_string("SelfCrypto::OlmError"), rb_intern("from_string"), 1, rb_str_new2((this)));
}

#mark_keys_as_published ⇒ Object Also known as: mark_otk 



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# File 'ext/self_crypto/account.c', line 186

static VALUE mark_keys_as_published(VALUE self) {
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    (void) self_olm_account_mark_keys_as_published(this);

    return self;
}

#max_number_of_one_time_keys ⇒ Object Also known as: max_otk 



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# File 'ext/self_crypto/account.c', line 195

static VALUE max_number_of_one_time_keys(VALUE self) {
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    return SIZET2NUM((this));
}

#one_time_keys ⇒ Object Also known as: otk 



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# File 'ext/self_crypto/account.c', line 135

static VALUE one_time_keys(VALUE self) {
    VALUE retval;
    size_t size;
    void * ptr;
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    size = self_olm_account_one_time_keys_length(this);

    // add an additional byte to stop this from overflowing
    if ((ptr = malloc(size + 1)) == NULL) {
        rb_raise(rb_eNoMemError, "%s()", __FUNCTION__);
    }

    if (self_olm_account_one_time_keys(this, ptr, size) != size) {
        free(ptr);
        raise_olm_error(self_olm_account_last_error(this));
    }

    retval = rb_funcall(rb_eval_string("JSON"), rb_intern("parse"), 1, rb_str_new(ptr, size));

    free(ptr);

    return retval;
}

#one_time_keys_size ⇒ Object 



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# File 'ext/self_crypto/account.c', line 128

static VALUE one_time_keys_size(VALUE self) {
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    return SIZET2NUM((this));
}

#outbound_session(identity_key, pre_key) ⇒ Object 



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# File 'ext/self_crypto/account.c', line 216

static VALUE outbound_session(VALUE self, VALUE identity_key, VALUE pre_key) {
    return rb_funcall(rb_eval_string("SelfCrypto::OutboundSession"), rb_intern("new"), 3, self, identity_key, pre_key);
}

#remove_one_time_keys(session) ⇒ Object Also known as: update_otk 



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# File 'ext/self_crypto/account.c', line 202

static VALUE remove_one_time_keys(VALUE self, VALUE session) {
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    OlmSession * s;
    Data_Get_Struct(session, OlmSession, s);

    if (self_olm_remove_one_time_keys(this, s) == -1) {
        raise_olm_error(self_olm_account_last_error(this));
    }

    return self;
}

#sign(message) ⇒ Object 



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# File 'ext/self_crypto/account.c', line 161

static VALUE sign(VALUE self, VALUE message) {
    VALUE retval;
    size_t size;
    void * ptr;
    OlmAccount * this;
    Data_Get_Struct(self, OlmAccount, this);

    size = self_olm_account_signature_length(this);

    if ((ptr = malloc(size)) == NULL) {
        rb_raise(rb_eNoMemError, "%s()", __FUNCTION__);
    }

    if (self_olm_account_sign(this, RSTRING_PTR(message), RSTRING_LEN(message), ptr, size) == -1) {
        free(ptr);
        raise_olm_error(self_olm_account_last_error(this));
    }

    retval = rb_str_new(ptr, size);

    free(ptr);

    return retval;
}

#to_pickle(*args) ⇒ Object 



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# File 'ext/self_crypto/account.c', line 232

static VALUE to_pickle(int argc, VALUE * argv, VALUE self) {
    VALUE password, retval;
    OlmAccount * this;
    void * ptr;
    size_t size;
    Data_Get_Struct(self, OlmAccount, this);

    (void) rb_scan_args(argc, argv, "01", & password);

    password = (password == Qnil) ? rb_str_new2("") : password;

    size = self_olm_pickle_account_length(this);

    if ((ptr = malloc(size)) == NULL) {
        rb_raise(rb_eNoMemError, "%s()", __FUNCTION__);
    }

    if (self_olm_pickle_account(this, RSTRING_PTR(password), RSTRING_LEN(password), ptr, size) != size) {
        free(ptr);
        raise_olm_error(self_olm_account_last_error(this));
    }

    retval = rb_str_new(ptr, size);

    free(ptr);

    return retval;
}